Question

What are the six trig function values of `(13pi)/4`?

Answer 1

Find 6 trig function values of (13pi)/4

Explanation:

Call (13pi/4) = x
`sin x = sin (13pi)/4 = sin ((5pi)/4 + 2pi) = sin (pi/4 + pi) =`
`= -sin (pi/4) = -sqrt2/2`
`cos x = (pi/4 + pi) = - cos (pi/4) = - sqrt2/2`
`tan x = sin x/(cos x) = 1`
cot x = 1
`sec x = -2/sqrt2 = -sqrt2`
`csc x = -2/sqrt2 = -sqrt2`