Globular Clusters

Globular Clusters

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mitcheljh

Commented on May 26, 2016 11:05 AM 05/26/16

Saepe quos quis vel molestiae

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Which of the following trigonometric functions are even?

Multiple answers are possible

cos(-x) = -cos(x)
sin(-x) = -sin(x)
tan(-x) = -tan(x)
sec(-x) = -sec(x)
csc(-x) = -csc(x)
cot(-x) = -cot(x)

test discussion