Question

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Answer 1

Step-by-step explanation:

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A

Answer 2

Step-by-step explanation:

tu

r.h.s

=sinA/cotA+cosecA*cotA- cosecA/cotA-cosecA

=sinA(cotA-cosecA)/cot²A-cosec²A

=sinA* cotA- sinA.cosecA

=sinA.cosA/sinA-1

=cosA-1

l.h.s

=2+ sinA(cotA+ cosecA)/cot²A-cosec²A

=2+ sinA.cotA+ sinA.cosecA

=2+sinA.cosA/sinA+1

=2+cosA-1

=cosA-1

r.h.s=l.h.s