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TOMATO

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Suppose that x1, x2, …., xn (n > 2) are real numbers such that xi
= Xn-i+1 for 1 ≤ i ≤ n. Consider the sum S = ΣΣΣxixjxk, where
summations are taken over all i, j, k : 1 ≤ i, j, k ≤ n and i, j, k are all
distinct. Then S equals

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pmshukla96 asked May 8, 2018
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TOMATO
If A, B, C and D are statements such that if at least one of A and B is true, then at least one of C and D must be true. Further, both A and C are false. Then (a) if D is false then B is false (b) both B and D are false (c) both B and D are true (d) if D is true then B is true.
If A, B, C and D are statements such that if at least one of A andB is true, then at least one of C and D must be true. Further, both Aand C are false. Then(a) if D is fa...
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