a)
Show that
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%40font-face%7Bfont-family%3A'round_brackets18549f92a457f2409'%3Bsrc%3Aurl(data%3Afont%2Ftruetype%3Bcharset%3Dutf-8%3Bbase64%2CAAEAAAAMAIAAAwBAT1MvMjwHLFQAAADMAAAATmNtYXDf7xCrAAABHAAAADxjdnQgBAkDLgAAAVgAAAASZ2x5ZmAOz2cAAAFsAAABJGhlYWQOKih8AAACkAAAADZoaGVhCvgVwgAAAsgAAAAkaG10eCA6AAIAAALsAAAADGxvY2EAAARLAAAC%2BAAAABBtYXhwBIgEWQAAAwgAAAAgbmFtZXHR30MAAAMoAAACOXBvc3QDogHPAAAFZAAAACBwcmVwupWEAAAABYQAAAAHAAAGcgGQAAUAAAgACAAAAAAACAAIAAAAAAAAAQIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAgICAAAAAo8AMGe%2F57AAAHPgGyAAAAAAACAAEAAQAAABQAAwABAAAAFAAEACgAAAAGAAQAAQACACgAKf%2F%2FAAAAKAAp%2F%2F%2F%2F2f%2FZAAEAAAAAAAAAAAFUAFYBAAAsAKgDgAAyAAcAAAACAAAAKgDVA1UAAwAHAAA1MxEjEyMRM9XVq4CAKgMr%2FQAC1QABAAD%2B0AIgBtAACQBNGAGwChCwA9SwAxCwAtSwChCwBdSwBRCwANSwAxCwBzywAhCwCDwAsAoQsAPUsAMQsAfUsAoQsAXUsAoQsADUsAMQsAI8sAcQsAg8MTAREAEzABEQASMAAZCQ%2FnABkJD%2BcALQ%2FZD%2BcAGQAnACcAGQ%2FnAAAQAA%2FtACIAbQAAkATRgBsAoQsAPUsAMQsALUsAoQsAXUsAUQsADUsAMQsAc8sAIQsAg8ALAKELAD1LADELAH1LAKELAF1LAKELAA1LADELACPLAHELAIPDEwARABIwAREAEzAAIg%2FnCQAZD%2BcJABkALQ%2FZD%2BcAGQAnACcAGQ%2FnAAAQAAAAEAAPW2NYFfDzz1AAMIAP%2F%2F%2F%2F%2FVre7u%2F%2F%2F%2F%2F9Wt7u4AAP7QA7cG0AAAAAoAAgABAAAAAAABAAAHPv5OAAAXcAAA%2F%2F4DtwABAAAAAAAAAAAAAAAAAAAAAwDVAAACIAAAAiAAAAAAAAAAAAAkAAAAowAAASQAAQAAAAMACgACAAAAAAACAIAEAAAAAAAEAABNAAAAAAAAABUBAgAAAAAAAAABAD4AAAAAAAAAAAACAA4APgAAAAAAAAADAFwATAAAAAAAAAAEAD4AqAAAAAAAAAAFABYA5gAAAAAAAAAGAB8A%2FAAAAAAAAAAIABwBGwABAAAAAAABAD4AAAABAAAAAAACAA4APgABAAAAAAADAFwATAABAAAAAAAEAD4AqAABAAAAAAAFABYA5gABAAAAAAAGAB8A%2FAABAAAAAAAIABwBGwADAAEECQABAD4AAAADAAEECQACAA4APgADAAEECQADAFwATAADAAEECQAEAD4AqAADAAEECQAFABYA5gADAAEECQAGAB8A%2FAADAAEECQAIABwBGwBSAG8AdQBuAGQAIABiAHIAYQBjAGsAZQB0AHMAIAB3AGkAdABoACAAYQBzAGMAZQBuAHQAIAAxADgANQA0AFIAZQBnAHUAbABhAHIATQBhAHQAaABzACAARgBvAHIAIABNAG8AcgBlACAAUgBvAHUAbgBkACAAYgByAGEAYwBrAGUAdABzACAAdwBpAHQAaAAgAGEAcwBjAGUAbgB0ACAAMQA4ADUANABSAG8AdQBuAGQAIABiAHIAYQBjAGsAZQB0AHMAIAB3AGkAdABoACAAYQBzAGMAZQBuAHQAIAAxADgANQA0AFYAZQByAHMAaQBvAG4AIAAyAC4AMFJvdW5kX2JyYWNrZXRzX3dpdGhfYXNjZW50XzE4NTQATQBhAHQAaABzACAARgBvAHIAIABNAG8AcgBlAAAAAAMAAAAAAAADnwHPAAAAAAAAAAAAAAAAAAAAAAAAAAC5B%2F8AAY2FAA%3D%3D)format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%222.5%22%20x2%3D%22115.5%22%20y1%3D%2223.5%22%20y2%3D%2223.5%22%2F%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2252.5%22%20y%3D%2216%22%3Ecot%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2271.5%22%20y%3D%2216%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2215.5%22%20y%3D%2241%22%3Esec%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2235.5%22%20y%3D%2241%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22round_brackets18549f92a457f2409%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2244.5%22%20y%3D%2241%22%3E(%3C%2Ftext%3E%3Ctext%20font-family%3D%22round_brackets18549f92a457f2409%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22110.5%22%20y%3D%2241%22%3E)%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2251.5%22%20y%3D%2241%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2264.5%22%20y%3D%2241%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2283.5%22%20y%3D%2241%22%3Esin%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22102.5%22%20y%3D%2241%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22126.5%22%20y%3D%2230%22%3E%26%23x2261%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22139.5%22%20y%3D%2230%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22152.5%22%20y%3D%2230%22%3E%2B%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22163.5%22%20x2%3D%22201.5%22%20y1%3D%2223.5%22%20y2%3D%2223.5%22%2F%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22182.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22175.5%22%20y%3D%2241%22%3Esin%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22194.5%22%20y%3D%2241%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22206.5%22%20y%3D%2230%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22217.5%22%20y%3D%2230%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22231.5%22%20y%3D%2230%22%3E%26%23x2260%3B%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22242.5%22%20x2%3D%22267.5%22%20y1%3D%2223.5%22%20y2%3D%2223.5%22%2F%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22248.5%22%20y%3D%2216%22%3En%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22260.5%22%20y%3D%2216%22%3E%26%23x3C0%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22255.5%22%20y%3D%2241%22%3E2%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22272.5%22%20y%3D%2230%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22283.5%22%20y%3D%2230%22%3En%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22297.5%22%20y%3D%2230%22%3E%26%23x2208%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math110ce9912fdc85ca73391f0627a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22310.5%22%20y%3D%2230%22%3E%26%23x2124%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
.
(b)
Hence determine the set of values for
for which
has no real solutions.
(a)
Find the exact value for the expression
.
Give your answer in the form
where
.
(b)
Find the exact value for the expression
.
(a)
Sketch the graph of
for format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22math106990466ab1afafce1e80c422a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%226.5%22%20y%3D%2216%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2217.5%22%20y%3D%2216%22%3E2%3C%2Ftext%3E%3Ctext%20font-family%3D%22math106990466ab1afafce1e80c422a%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2228.5%22%20y%3D%2216%22%3E%26%23x3C0%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math106990466ab1afafce1e80c422a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2243.5%22%20y%3D%2216%22%3E%26%23x2264%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2255.5%22%20y%3D%2216%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math106990466ab1afafce1e80c422a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2269.5%22%20y%3D%2216%22%3E%26%23x2264%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math106990466ab1afafce1e80c422a%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2283.5%22%20y%3D%2216%22%3E%26%23x3C0%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
(a)
Show that the equation
can be rewritten as
(b)
Hence solve the equation format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%224.5%22%20y%3D%2230%22%3E5%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2223.5%22%20y%3D%2230%22%3Esin%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2242.5%22%20y%3D%2230%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2256.5%22%20y%3D%2230%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2269.5%22%20y%3D%2230%22%3E9%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2290.5%22%20y%3D%2230%22%3Ecos%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22110.5%22%20y%3D%2230%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22124.5%22%20y%3D%2230%22%3E%3D%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%22135.5%22%20x2%3D%22206.5%22%20y1%3D%2223.5%22%20y2%3D%2223.5%22%2F%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22141.5%22%20y%3D%2216%22%3E2%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22162.5%22%20y%3D%2216%22%3Ecos%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22178.5%22%20y%3D%2216%22%3Ee%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22186.5%22%20y%3D%2216%22%3Ec%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22199.5%22%20y%3D%2216%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22143.5%22%20y%3D%2242%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22156.5%22%20y%3D%2242%22%3E%2B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%22176.5%22%20y%3D%2242%22%3Etan%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2213%22%20text-anchor%3D%22middle%22%20x%3D%22190.5%22%20y%3D%2237%22%3E2%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22198.5%22%20y%3D%2242%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22211.5%22%20y%3D%2230%22%3E%2C%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22226.5%22%20y%3D%2230%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22241.5%22%20y%3D%2230%22%3E%26%23x3C0%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22256.5%22%20y%3D%2230%22%3E%26%23x2264%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22268.5%22%20y%3D%2230%22%3Ex%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22282.5%22%20y%3D%2230%22%3E%26%23x2264%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%22296.5%22%20y%3D%2230%22%3E%26%23x3C0%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1ba5f3f37877b2679bcd55686e2%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%22305.5%22%20y%3D%2230%22%3E.%3C%2Ftext%3E%3C%2Fsvg%3E)
(b)
Show that
for
.
(c)
Given that
has an inverse, find the maximum value for
.
A function
can be defined by
.
(a)
Sketch the graph of
indicating clearly any intercepts with the coordinate axes and asymptotes.
Consider the equation
.
(a)
Explain why the equation is undefined when
for any
.
(b)
Solve the equation
.
Show that 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Solve the equation
for the interval
.