[" If "(1+x-2x^(2))^(6)=1+a(1)x+a(2)x^(2...

[" If "(1+x-2x^(2))^(6)=1+a_(1)x+a_(2)x^(2)+....+a_(12)x^(12)" ,then the "],[" expression "a_(2)+a_(4)+a_(6)+...+a_(12)" has the value "],[[" (a) "32," (b) "63],[" (c) "64," (d) none of these "]]

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If (1+x-2x^(2))^(6)=1+a_(1)x+a_(2)x^(12)+...+a_(12)x^(12) then find the value of a_(2)+a_(4)+a_(6)+...+a_(12)

If (1+x-2x^(2))^(6)=1+a_(1)x+a_(2)x^(2)+….+a_(12)^(x^(12)) , then find the value of a_(2)+a_(4)+a_(6)+….+a_(12) .

(1+x-2x^(2))^(6)=1+a_(1),x+a_(2)x^(2)+….+a_(12)^(12) then the value of a_(2) +a_(4)+a_(6)+….+a_(12)=………

If (1+x-2x^(2))^(6) = 1 + a_(1)x+a_(2)x^(2) + "……" + a_(12)x^(12) , then find the value of a_(2) + a_(4) +a_(6)+ "……" + a_(12) .

If (1+x-2x^2)^(6) = 1 + a_(1) x + a_(2) x^(2) + ... + a_(12) x^(12) , then find a_2+ a_4 + ... + a_12

If (1+2x^(2))^(6)=1+a_(1)=a_(2)x^(2)a_(3)x^(3)+...+a_(12)x^(12) then the value of expression a_(2)+a_(4)+a_(6)+...+a_(12) is 322.313.634.64

If (1 + x - 3x^(2))^(10) = a_(0) + a_(1)x + a_(2)x^(2) + ....... + a_(20)x^(20) , then a_(2) + a_(4) + a_(6) + ……. + a_(20) =

If (1+x+x^(2))^(n) = a_(0)+a_(1) x+a_(2) x^(2)+..+a_(2 n) x^(2 n) then the value of a_(1)+a_(4)+a_(7)+.. . . is