Math, asked by harsharathi560, 6 months ago

(sin⁴A-cos⁴A+1) cosec²A = 2 prove that

Answers

Answered by sandy1816

1

Answer:

(sin⁴A-cos⁴A+1)cosec²A

={(sin²A-cos²A)(sin²A+cos²A)+1}cosec²A

=(sin²A-cos²A+1)cosec²A

=(sin²A+sin²A)cosec²A

=2sin²Acosec²A

=2

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