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If a, b, c are the sides of the triangle...

If a, b, c are the sides of the triangle ABC such that `a^(4) +b^(4) +c^(4)=2x^(2) (a^(2)+b^(2)),` then the angle opposite to the side c is-

Text Solution

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The correct Answer is:
`C=(pi)/(4) " or "(3pi)/(4)`
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