If `(1+x+x^2)^n = a_0+a_1x+a_2x_2 +..............+a_(2n)x^(2n)` then the value of `a_2+a_5+a_8+.........`

If (1+x+x^2)^n = a_0+a_1x+a_2x_2 +..............+a_(2n)x^(2n) then the value of a_1+a_4+a_7+.........

If (1+x+x^(2))^(n)=a_(0)+a_(1)x+a_(2)x_(2)+............+a_(2n)x^(2n) then the value of a_(2)+a_(5)+a_(8)+.......

If (1-x+x^2)^n=a_0+a_1x+a_2x^2+ .........+a_(2n)x^(2n),\ find the value of a_0+a_2+a_4+........+a_(2n)dot

If (1 - x + x^2)^n = a_0 + a_1 x + a_2x^2 + ..... + a_(2n)x^(2n) then a_0 + a_2 + a_4 + ... + a_(2n) equals

If (1 -x + x^2)^n = a_0 +a_1x + a_2x^2+….+a_(2n)x^(2n) then a_0 + a_2 +a_4 + …….+a_(2n) =

If (1 - x + x^2)^n = a_0 + a_1x + a_2x^2 +...+ a_(2n) x^(2n) then a_0 + a_2 + a_4 +...+ a_(2n) is equal to

If (1 + x +x^2)^n = a_0 =a_1x + a_2x^2 + ….+a_(2n)x^(2n) then prove that a_1 +a_3 +a_5 + …..a_(2n - 1) = (3^n - 1)/(2)

If (1 + x +x^2)^n = a_0 +a_1x + a_2x^2 + ….+a_(2n)x^(2n) then prove that a_0 +a_1 +a_2 + ……a_(2n) = 3^n

If (1+x+x^2)^n=a_0+a_1x+a_2x^2++a_(2n)x^(2n), find the value of a_0+a_3+a_6++ ,n in Ndot