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

The value of `(sin ^(2)5^(@) +sin ^(2) 10^(@)+ sin ^(2) 15^(@) +…+ sin ^(2) 90^(@))` is-

A

`7(1/2)`

B

`8(1/2)`

C

`9(1/2)`

D

8

Text Solution

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The correct Answer is:
C
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