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In triangleABC, if cos 'A/2' = sqrt((b+c...

In `triangleABC`, if `cos 'A/2' = sqrt((b+c)/(2c))`, then-

A

Area of triangle is `1/2 ab`

B

Circumradious is equal to `1/2 c`

C

Area of triangle is `1/2bc`

D

Circumradius is equal to `1/2 a`

Text Solution

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The correct Answer is:
A, B
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