SOLUTION: sin alpha = 3/5, pi/2 < alpha <pi, cos beta = -12/13, pi <beta< 3pi/2

SOLUTION: sin alpha = 3/5, pi/2 < alpha <pi, cos beta = -12/13, pi <beta< 3pi/2

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Question 868519: sin alpha = 3/5, pi/2 < alpha
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Since ,

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Similarly,

Since

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