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## Main Question or Discussion Point

Does ##(\sin^{-1}\theta)^2 =\sin^{-2}\theta## ?

- Thread starter Kuhan
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- #1

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Does ##(\sin^{-1}\theta)^2 =\sin^{-2}\theta## ?

- #2

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- #3

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would be easier to just use the inverse function mate.

- #4

HallsofIvy

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To put it simply, "[itex]sin^{-1}(x)[/itex]" for the inverse function is an unfortunate notation!

- #5

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Thanks! now it makes sense. I used to use ##\sin^{-1}\theta## instead of ##\arcsin\theta## . They just aren't the same, I guess. Basically,

##\sin^{-1}\theta=\csc\theta##

- #6

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they do use ##\sin^{-1}\theta=\arcsin\theta## in math! wow so confusing!

- #7

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http://tutorial.math.lamar.edu/Extras/AlgebraTrigReview/InverseTrig.aspx

answers the problem

answers the problem

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