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In an acute angled Delta ABC , if ...

In an acute angled ` Delta ABC , ` if
` a^(4) + b^(4) +c^(4) = 2c^(2) (a^(2) + b^(2)) ` then the angle C is

A

` ( pi )/(3) `

B

` ( pi )/(4) `

C

` (pi ) /( 6)`

D

` (pi)/(12) `

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The correct Answer is:
B
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