Math, asked by naeemofficial8725, 8 months ago

Prove the following trigonometric identities:
cotA-cosA/cotA+cosA=cosecA-1/cosecA+1

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Answered by Anonymous
0

Step-by-step explanation:

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Answered by topwriters
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cotA - cosA / cotA + cosA = cosecA -1 / cosecA + 1  proved

Step-by-step explanation:

To prove: cotA - cosA / cotA + cosA = cosecA -1 / cosecA + 1

Proof:  

LHS (cotA - cosA) / (cotA + cosA) = (cosA/SinA - CosA) / (CosA/SinA + CosA)

 = CosA(1/SinA - 1) / CosA(1/SinA + 1)

 = (1/SinA - 1) / (1/SinA + 1)

 = CosecA - 1 / CosecA + 1

LHS = RHS

Hence proved.

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