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प्रश्न
Prove that: `cos^2 A + 1/(1 + cot^2 A) = 1`.
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उत्तर
LHS = `cos^2 A + 1/(cosec^2 A)`
= cos2 A + sin2 A
= 1
= RHS
Hence proved.
संबंधित प्रश्न
Prove the following trigonometric identities.
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