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Q.

If $α a n d β$ are complementary angles, then $\sin^{2} (90 - α) + \sin^{2} (90 - β) =$

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a

0

b

1

c

- 1

d

2

answer is B.

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Detailed Solution

α + β = 90 °

$\sin^{2} (90 - α) + \sin^{2} α$

$= \cos^{2} α + \sin^{2} α$

$= 1$ .

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