1.

यदि `x=11,` हो तो `x^(5)-12x^(4)+12x^(3)-12x^(2)+12x-1` का मान बताइए।A. 11B. 10C. 12D. -10

Answer» Correct Answer - B
`x^(5)-12x^(4)+12x^(3)-12x^(2)+12x-1`
`x^(5)-11x^(4)-x^(4)+11x^(3)+x^(3)-11x^(2)-`
`x^(2)+11x+x-1`
put `x=11`
`=11^(5)-11.11^(4)-11^(4)+11.11^(3)+`
`11^(3)-11.11^(2)-11^(2)+11.11+11-1`
`=11-1=10`


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