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Find the value of sin^(2)5^(@)+sin^(2)10...

Find the value of `sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+.............+sin^(2)90^(@)`.

A

`8 (1)/(2)`

B

`9(1)/(2)`

C

9

D

0

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The correct Answer is:
B
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