please solve the question step by step
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Step-by-step explanation:
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Step-by-step explanation:
={(sin A/cosA) -(cosA/sinA) }/sinA×cosA
=(sin^ 2A-cos^2)/cos^2 A sin^2 A
=(sin^2 A/cos^2 A Sin^2 A) -(cos^2A/sin^2A cos^2A)
=sec^2A-cosec^2A
HENCE PROVED
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