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Question

(1x)2 = 1 - 2x + 3x2 - 4x3 + .........


A

True

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B

False

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Solution

The correct option is B

False


(1+x)n = 1 + nx + n(n1)2!x2 + n(n1)(n2)3!x3............

(1x)2=1+(2)(x)+(2)(3)(x)22!+(2)(3)(4)3!(x)3....

= 1 + 2x + 3x2 + 4x3.............


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