SOLUTION: Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find cosx AND siny

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Question 1036014: Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find cosx AND siny
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
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Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find cosx AND siny
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cos(x) =  =  =  =  =  = .


The sign  "+"  was chosen at the square root because the cosine is positive in the first quadrant.


Similarly,  sin(y) =  =  =  =  = .

The sign  "+"  was chosen at the square root because the sine is positive in the first quadrant.


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