tan A - cot A =
1- 2 cos ² A
А
sin A cos A
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Step-by-step explanation:
Simplifying the LHS of tanA−cotA=cosAsinA1−2cos2A.
tanA−cotA=cosAsinA−sinAcosA
=sinAcosAsin2A−cos2A
=sinAcosA1−cos2A−cos2A
=sinAcosA1−2cos2A
=RHS
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