CUET_14-15

 In the case of triangle ABC if a4+b4+c4=2c2(a2+b2), the value of cosC will be- \text { In the case of triangle } A B C \text { if } a^{4}+b^{4}+c^{4}=2 c^{2}\left(a^{2}+b^{2}\right) \text {, the value of } \cos C \text { will be- }

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