Math, asked by aarohinandita, 4 months ago

The value of cosec4 A – 2 cosec2 A + 1 is

Answers

Answered by rkcomp31

1

Answer:

Step-by-step explanation:

cosec⁴ A – 2 cosec² A + 1

=(cosec²A) ²-2 cosec² A + 1

=( cosec²A-1)²

=(Cot²A)²

=cot⁴A

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