What are the six trig function values of (-7pi)/4?

1 Answer
Nghi N.
Nov 2, 2015

Find the six trig function values of ((-7pi)/4)

Explanation:

sin ((-7pi)/4) = sin (pi/4 - 2pi) = sin (pi/4) = sqrt2/2
cos ((-7pi)/4) = cos (pi/4 - 2pi) = cos (pi/4) = sqrt2/2
tan ((-7pi)/4) = sin/(cos) = 1
cot ((-7pi)/4) = 1/(tan) = 1
sec ((-7pi)/4) = 1/(cos) = 2/sqrt2 = sqrt2
csc ((-7pi)/4) = 1/(sin) = 2/sqrt2 = sqrt2

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