proof
I will mark it brainliest
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Putting tanA = (sinA/cosA) & cotA = (cosA/sinA) we get,
Now,
⟿ (sin²A/sinA*cosA) + (cos²A/sinA*cosA) +(sinA*cosA/sinA*cosA)
⟿ (sinA/cosA) + (cosA/sinA) + 1
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