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I need help with the inverse of si, cos, & tan.

So far on one problem I've gotten
sinX = 29/14
where do I go from here? I know you have to use cos^-1, but how? Can anyone work this one problem out for me to see how to do it?

THANKS!

1 answer

you know sin^2 + cos^2=2, so then solve for cosX.

But I have a problem with what you have already. How can sin of any angle be greater than 1? (29/14) is greater than 1.