What are the six trig function values of #(5pi)/4#?

1 Answer
Nghi N.
Nov 4, 2015

find 6 trig function values of #(5pi)/4#

Explanation:

#sin ((5pi)/4) = sin (pi/4 + pi) = - sin (pi/4) = -sqrt2/2#
#cos ((5pi)/4) = cos (pi/4 + pi) = - cos (pi/4) = -sqrt2/2#
#tan ((5pi)/4) = sin/(cos) = (-sqrt2)/(-sqrt2) = 1#
#cot ((5pi)/4) = 1/(tan) = 1#
#sec ((5pi)/4) = 1/(cos) = - 2/sqrt2 = - 2sqrt2/2 = -sqrt2#
#csc ((5pi)/4) = 1/(sin) = -sqrt2#

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