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In a right angled !ABC sin^(2)A+sin^(2)B...

In a right angled `!ABC sin^(2)A+sin^(2)B+sin^(2)C`=

A

0

B

1

C

-1

D

none of these

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The correct Answer is:
D
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OBJECTIVE RD SHARMA-PROPERTIES OF TRIANGLES AND CIRCLES CONNECTED WITH THEM-Exercise
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  3. In a right angled !ABC sin^(2)A+sin^(2)B+sin^(2)C=

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  7. In any !ABC b^(2)sin2C+c^(2)sin2B=

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