Question

*** IF U SEND SOLN PHOTO I WILL MARK BRAINLIST ***18. The coefficient of
${x}^{100}$
in the expansion of
$\frac{ {(1 + x)}^{100} (1 - {x}^{101} )}{(1 - x)}$
is
(A)1
(B) 200
(C) 100C2
(D) (2)¹⁰⁰


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Answer 1

Answer:

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Answer 2

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