Grade 12th pass9 grade maths
If x + y + z = 0, show that r + y 9 + z3 • 3zyz.
If x + y + z = 0, show that r + y 9 + z3 • 3zyz.
1 Answer
Pawan Prajapati
Consider the identity r3 + y3 + z3 - 3xy:z •
= (x + y + z) (x2 + y2 + z2 - xi -Yz -.u) •••(i)
If x + y + z = 0, then
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