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If in an obtuse angled triangle the obtu...

If in an obtuse angled triangle the obtuse angle is `(3pi)/4` and the other two angle are equal to two values of `theta`satisfying atantheta +bsectheta=c, when `abs(b)lesqrt((a^2+c^2)),` then`a^2-c^2` is equal to

A

ac

B

2ac

C

a/c

D

none of these

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The correct Answer is:
B
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