tano = p / q psina - qsin / p sin + qcos = p2 q2 / p2 + q2
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tano = p / q psina - qsin / p sin + qcos = p2 q2 / p2 + q2
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Answer:
tanA=p/q
then
sinA=p/√(p²+q²)
cosA=q/√(p²+q²)
=> (psinA-qcosA)/(psinA+qcosA)
= (p²-q²)/(p²+q²)
hope it helps you