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Cosinverse12/13+sininverse3/5=56/65
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Prove that:cos-1(12/13)+sin-1(3/5)=sin-1(56/65).
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Prove that:cos-1(12/13)+sin-1(3/5)=sin-1(56/65).

LHS =​cos-1(12/13)+sin-1(3/5)

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