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In any Delta ABC,((a+b+c)(b+c-a)(c+a-b)(...

In any `Delta ABC,((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^2c^2)`=

A

`sin^2B`

B

`cos^2A`

C

`cos^2B`

D

`sin^2A`

Text Solution

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The correct Answer is:
D
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