Math, asked by rrkumasagi2005, 10 months ago

cosA.cotA/1+sinA

= cosec A-1

Answers

Answered by sandy1816

4

Step-by-step explanation:

cosAcotA/1+sinA

=cos²A/sinA(1+sinA)

=(1-sinA)(1+sinA)/sinA(1+sinA)

=(1-sinA)/sinA

=cosecA-1

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