a-b3
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Factorise: 250(a-b)^3+2 |
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1 | 1606 | June 19, 2019 |
If A,B,C are all non zero and A+B+C = 0 Prove that A2/BC + B2/CA + C2/AB = 3 |
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1 | 2223 | June 18, 2019 |