cot^2A-cos^2A = cot^2 A × cos^2A
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daisy55:
Plz. Mark it as brainliest answer...
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Cos^2a/sin^2a-cos^2a[cot^2a=cos^2a/sin^a]
=cos^a-sin^a (cos^a)/sin^2a
=cos^2a (1-sin^2a)/sin^2a
=cos^a (cos^2a)/sin^a[1-sin^2a=cos^2a]
=cos^2a/sin^2a×cos^2a[cos^2a/sin^2a=cot^2a]
=cot^2a×cos^a
Step-by-step explanation:
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