If α + β = 90°, then the value of (1 - sin2α)(1 - cos2α) × (1 + cot2β)(1 + tan2β) is? Options: A . &nbsp1 B . &nbsp-1 C . &nbsp0 D . &nbsp2

If α + β = 90°, then the value of (1 - sin2α)(1

Question

If α + β = 90°, then the value of (1 - sin2α)(1 - cos2α) × (1 + cot2β)(1 + tan2β) is?

Options:

A . 1

B . -1

C . 0

D . 2

Answer: Option A

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