Prove that there will be no term containing x^2r in the expansion of (x+(1/x^2))^(n-3) if n-2r is positive but not a multiple of 3
its showing that is not alowed i tried and solved
allowed*
Prove that there will be no term containing x^2r in the expansion of (x+(1/x^2))^(n-3) if n-2r is positive but not a multiple of 3