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sum (b^(2) -c^(2))/( a^(2)) sin ^(2) A =...

` sum (b^(2) -c^(2))/( a^(2)) sin ^(2) A = `

A

` -1`

B

` (1)/(2) `

C

`1`

D

`0`

Text Solution

Verified by Experts

The correct Answer is:
D
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