What are the six trig function values of $(-3pi)/2$ ?

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What are the six trig function values of $(-3pi)/2$ ?

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Answer 1 · 2016-05-25T02:51:04

Let $a =-(3pi)/2$ . Then $sin a = csc a = 1. cos a = sec a = 0$ .
$tan a_- = cot a_- = oo. tan a_+-= cot a_+=-oo$ .

Explanation:

The angle is common to both the 1st and the 2nd quadrants. Also, tan and cot have infinite discontinuity at this value. Accordingly, the answer is given.

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What are the six trig function values of $(-3pi)/2$ ?

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