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There is an angle θ such that  sin(θ2)+cos(θ2)=65What is the value of sinθ

 Oct 5, 2022
 #1
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sin theta = 5/12.

 Oct 5, 2022
 #2
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Square both sides and tidy up.

sin(theta) = 11/25.

 Oct 6, 2022

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