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If in triangleABC ,a^4+b^4+c^4=2c^2(a^2+...

If in `triangleABC ,a^4+b^4+c^4=2c^2(a^2+b^2)` then find `angleC`

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`45^@` or `135^@`
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PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
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