Math, asked by damayantidas17, 13 days ago

cotA-1+cosecA
Prove that :
cotA+1-cosecA
cotA + cosech

Answers

Answered by sandy1816

1

Answer:

cotA+cosecA-1/cotA-cosecA+1

=(cosecA+cotA)-(cosec²A-cot²A)/cotA-cosecA+1

=(cosecA+cotA)(1-cosecA+cotA)/cotA-cosecA+1

=cosecA+cotA

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