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(2a+1)^3+(a-1)^3...

`(2a+1)^3+(a-1)^3`

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If S =(y-1-1/2(y-1)^(2)+1/3(y-1))^(3)/(a-1-1/2(a-1)^(2)+1/3(a-1)^(3) …. Then S is equal to

If S =(y-1-1/2(y-1)^(2)+1/3(y-1))^(3)/(a-1-1/2(a-1)^(2)+1/3(a-1)^(3) …. Then S is equal to

Prove that: |a^2+2a2a+1 1 2a+1a+2 1 3 3 1|=(a-1)^3 .

If S=((b-1)-(1)/(2)(b-1)^(2)+(1)/(3)(b-1)^(3)-....)/((a-1)-(1)/(2)(a-1)^(2)+(1)/(3)(a-1)^(3)-...), then S =

((y-1)-(1)/(2)(y-1)^(2)+(1)/(3)(y-1)^(3)-....oo)/((a-1)-(1)/(2)(a-1)^(2)+(1)/(3)(a-1)^(3)-....oo)=

((y-1)-(1)/(2)(y-1)^(2)+(1)/(3)(y-1)^(3)-....oo)/((a-1)-(1)/(2)(a-1)^(2)+(1)/(3)(a-1)^(3)-....oo)=

(a-1)-(1)/(2)(a-1)^(2)+(1)/(3)(a-1)^(3)-(1)/(4)(a-1)^(4)+...=

The value of (2 (1)/(3) - 1(2)/(11) )/(3 + (1)/(3 + (1)/(3 + 1/3) ))