tan A - cos A /sin A* cos A =sec^2 A -cosec^2 A
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Step-by-step explanation:
=[(sinA/cosA)-cosA]/sinA.CosA
=[(sinA-cos^2A)/cosA]/sinA.cosA
=(sinA-cos^2A)/sinA.cos^2A
=SinA/sinA.cos^2A-cos^2A/sinA cos^2A
=sec^2A-cosecA
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