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If Delta ABC, if cosA/2=sqrt((b+c)/(2c)...

If ` Delta ABC, if cosA/2=sqrt((b+c)/(2c)),` then

A

area of the triangle is `(1)/(2)ab`

B

circumradius is equal to `(1)/(2)c`

C

area of the triangle is `(1)/(2)bc`

D

circumradius is equal to `(1)/(2)a`

Text Solution

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The correct Answer is:
A, B
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