PLZZZ ANSWER FAST..... CLASS 10 NOT WNAT SILLI ANSWERS...
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HII FRIEND ,
HERE IS MY ANSWER,
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(cotA+cosecA-1)/(cotA-cosecA+1)
=(cotA+cosecA-1)²/(cotA+cosecA-1)(cotA-cosecA+1)
=(Cot²A+cosec²A+1+2cotAcosecA-2cotA-2cosecA)/(cot²A-cosec²A-1+2cosecA)
={2cosec²A-2cosecA+2cotA(cosecA-1)}/(2cosecA-2)
={2cosecA(cosecA-1)+2cotA(cosecA-1)}/2(cosecA-1)
=2(cosecA-1)(cosecA+cotA)/2(cosecA-1)
=cosecA+cotA
∴LHS=RHS--------------------------------------------------------------------------------------
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