Question

find the exact trigonometric ratios for the angle whose radian measures is given 11π/4

Answer 1

first note that
\[\frac{11\pi}{4}\] is coterminal with
\[\frac{11\pi}{4}-2\pi=\frac{11\pi}{4}-\frac{8\pi}{4}=\frac{3\pi}{4}\] then locate
\[\frac{3\pi}{4}\] on the unit circle on the attached cheat sheet to find all the trig functions at that piont

Answer 2

thank you very much this is very helpful :)

Answer 3

yw
it is a very useful cheat sheet i think