Asked by Annon

Which trigonometric function requires a domain restriction of [0,π/2)u(π/2,π] to make it invertable?

6 years ago

Answered by Anonymous

I believe it's sec^-1(x) or arcsec, not sure though

6 years ago

Answered by oobleck

looks good to me.
A quick check in your trig book will confirm it ...

6 years ago

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