SOLUTION: if the cos A=8/17, then what would sin A and tan A be?

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Question 408616: if the cos A=8/17, then what would sin A and tan A be?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
By the Pythagorean identity, sin%5E2+%28A%29+=+1+-+cos%5E2+%28A%29+=+1+-+64%2F289+=+225%2F289 --> sin+%28A%29+=+15%2F17 or sin+%28A%29+=+-15%2F17 depending on which quadrant A is in. This means tan(A) could be either 15%2F8 or -15%2F8.