Math, asked by javedakhtar1423, 10 months ago

Cosec theta / cosec - 1 + cosec theta / cosec theta + 1 = 2 sec theta

Answers

Answered by sandy1816
3

Step-by-step explanation:

cosec/cosec-1 + cosec/cosec+1

=(1/sin)×(sin/1-sin) + (1/sin)×(sin/1+sin)

=1/1-sin + 1/1+sin

=1+sin+1-sin/1-sin²

=2/cos²

=2sec²

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