1+cosA-sin^2A/sinA(1+cosA)=cotA
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Step-by-step explanation:
1+CosA-Sin²A / SinA(1+CosA)
CosA+Cos²A / SinA(1+CosA)
CosA(1+CosA)/ SinA(1+CosA)
CosA/SinA
= CotA
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