alleryarctan(x) is an _____ function (odd/even):
AEven
BODD (arctan(-x) = -arctan(x))
CNeither
DBoth
Answer & Solution
Correct answer: B. ODD (arctan(-x) = -arctan(x))
arctan(-x) = -arctan(x). Odd function.
(Graph symmetric about origin.) Same for arcsin.
arccos is neither (arccos(-x) = π - arccos(x)).
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