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If (1+x-2x^2)^(20)=a0+a1x+a2x^2+a3x^3+.....

If `(1+x-2x^2)^(20)=a_0+a_1x+a_2x^2+a_3x^3+...+a_(40)x^(40),` then find the value of `a_1+a_3+a_5+...+a_(39)dot`

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If (1+x+2x^(2))^(20) = a_(0) + a_(1)x^(2) "……" + a_(40)x^(40) , then find the value of a_(0) + a_(1) + a_(2) + "……" + a_(38) .

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CENGAGE ENGLISH-BINOMIAL THEOREM-All Questions
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