SOLUTION: a cos⁡〖θ+〗 b sin⁡〖 θ=p and a sin⁡〖θ-bcos θ=q ,then〗 prove that〗 a^2+b^2=p^2+q^2

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Question 917683: a cos⁡〖θ+〗 b sin⁡〖 θ=p and a sin⁡〖θ-bcos θ=q ,then〗 prove that〗
a^2+b^2=p^2+q^2

Answer by nihar*2013(34)   (Show Source): You can put this solution on YOUR website!
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