cosec2A + cot2A= cotA
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Step-by-step explanation:
LHS
csc2A+cot2A=1/sin2A+cot2A
=1÷2tanA/1+tan²A+1-tan²A ÷2tanA
=1+tan²A+1-tan²A/2tanA
=1/tanA
=cotA
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