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If A+B+C=90^(@) then sin^(2)A+sin^(2)B+s...

If `A+B+C=90^(@)` then `sin^(2)A+sin^(2)B+sin^(2)C=`

A

`1-2sin A sin B sin C`

B

`1+2 sin A sin B sin C`

C

`1+2 cos A cos B cosC`

D

`1-2cosA cosB cosC`

Text Solution

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The correct Answer is:
A
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