What are the six trig function values of $-90$ ?

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Answer 1 · 2018-03-26T09:52:25

Please see below.

$sin(-90^0)==-sin90^0=-1$

$cos(-90^0)==cos90^0=0$

$tan(-90^0)==-tan90^0=$ undefined

$csc(-90^0)==-csc90^0=-1$

$sec(-90^0)==sec90^0=$ undefined

$cot(-90^0)==-cot90^0=0$

What are the six trig function values of -90-90?