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In a DeltaABC, if 4 cos A cos B + sin 2A...

In a `DeltaABC`, if `4 cos A cos B + sin 2A+sin 2B+sin 2C=4`, then `DeltaABC` is

A

right angle but not issosceles

B

isosceles but not right angled

C

right angle isosceles

D

obtuse angled

Text Solution

Verified by Experts

The correct Answer is:
C
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