Question

How do you give the six trigonometric function values of -7pi/4?

Answer 1

Find values of trig functions

Explanation:

Trig table and unit circle -->
`sin ((-7pi)/4) = sin (pi/4 - (8pi)/4) = sin (pi/4 - 2pi) =`
`= sin (pi/4) = sqrt2/2`
`cos ((-7pi)/4) = cos (pi/4) = sqrt2/2`
`tan ((-7pi)/4) = 1`
`cot ((-7pi)/4) = 1`
`sec ((-7pi)/4) = sqrt2`
`csc ((-7pi)/4) = sqrt2`