true both this question
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Step-by-step explanation:
1.
sinA/1+cosA+1+cosA/sinA
=sin²A+1+cos²A+2cosA/sinA(1+cosA)
=2+2cosA/sinA(1+cosA)
=2(1+cosA)/sinA(1+cosA)
=2/sinA
=2cosecA
2.
cotA+cosecA-1/cotA-cosecA+1
=(cosecA+cotA)-(cosec²A-cot²A)/(cotA-cosecA+1)
=(cosecA+cotA)(1-cosecA+cotA)/(cotA-cosecA+1)
=cosecA+cotA
=1+cosA/sinA
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