progressions-3

If a,b,c,d and p are Real.
(a2+b2+c2)p2-2(ab+bc+cd)p+(b2+c2+d2)≤0

a,b,c,d are in ___?

2 Answers

62
Lokesh Verma ·

think of expressing it as the sum of 3 perfect squares..

1
chinmaya ·

thank you sir.

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