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If (x^2+x+1)/(1-x)=a0+a1x+a2x^2+ ,t h e ...

If `(x^2+x+1)/(1-x)=a_0+a_1x+a_2x^2+ ,t h e nsum_(r=1)^(50)a_r` is equal to `148` b. `146` c. `149` d. none of these

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CENGAGE ENGLISH-BINOMIAL THEOREM-All Questions
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  3. If (x^2+x+1)/(1-x)=a0+a1x+a2x^2+ ,t h e nsum(r=1)^(50)ar is equal to 1...

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  6. The coefficients of three consecutive terms of (1+x)^(n+5) are in the ...

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  13. The coefficient of a^8b^4c^9d^9 in (a b c+a b d+a c d+b c d)^(10) is...

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  14. If the coefficient of x^7in[a x^2-(1/(b x^2))]^(11) equal the coeffici...

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  15. If (1+x)^5=a0+a1x+a2x^2+a3x^3+a4x^4+a5x^5, then the value of (a0-a2+a4...

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  18. The coefficient of x^n in (1+x)^(101)(1-x+x^2)^(100) is non zero, then...

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