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In any DeltaABC, prove that (a-b)^(2)cos...

In any `DeltaABC`, prove that `(a-b)^(2)cos^(2)""C/2+(a+b)^(2)sin^(2)""C/2=c^(2).`

A

`a^2`

B

`b^2`

C

`c^2`

D

none

Text Solution

Verified by Experts

The correct Answer is:
C
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