SinA-CosA=B,Sina+CosA=C hole proman koro j B+1÷(C-1)=(1+ SinA)÷(CosA)
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SinA-CosA=B,Sina+CosA=C hole proman koro j B+1÷(C-1)=(1+ SinA)÷(CosA)
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