" (v) "(1-2x+x^(2))^(n)...

" (v) "(1-2x+x^(2))^(n)

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Find the middle term in expansion of : (1-2x+x^(2))^(n)

Find the middle term in the expansion of: (1-2x+x^(2))^(n)

Find the number of terms in the expansion of (1-2x+x^(2))^(n) .

If a_(r) is the coefficient of x^(r) in (1-2x+3x^(2))^(n), then sum_(r=0)^(2n)r*a_(r)=

Expand (1+ 2 x + 3x^(2) )^(n) in a series of ascending powers of x up to and including the term in x^2 .

If (1+2x+x^(2))^(n) = sum_(r=0)^(2n)a_(r)x^(r) , then a_(r) =

If (1+2x+x^(2))^(n) = sum_(r=0)^(2n)a_(r)x^(r) , then a_(r) =

If (1+2 x+x^(2))^(n)=sum_(r=0)^(2 n) a_(r) x^(r) , then a_(r) =

The middle term in the expansion of (1+(1)/(x^(2)))^(n) ( 1+x^(2))^(n) is

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