please help me to prove this identities
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Solution :
RHS = √( sec²A + cosec²A )
= √( 1 + tan²A + 1 + cot²A )
= √ ( tan²A + cot²A + 2 )
= √ ( tan²A + cot²A + 2tanAcotA )
= √ ( tanA + cotA )²
= tanA + cot A
= LHS
••••
RHS = √( sec²A + cosec²A )
= √( 1 + tan²A + 1 + cot²A )
= √ ( tan²A + cot²A + 2 )
= √ ( tan²A + cot²A + 2tanAcotA )
= √ ( tanA + cotA )²
= tanA + cot A
= LHS
••••
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