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...Expansion of (1 + x)" in ascending powers of x is(A) 1-nx +n(n 1) x2_n(n − 1) (n 2)2!3!X3 +.(B) 1-nx + ( x nn +x2_n(n + 1) (n + 2)n(n+1)(C) 1 + nx +x2 + n(n + 1) (n +2)n(n-1(D) 1 + nx +271) x2 + n(n − 1)(n-2)3!X3 +.x +3!x +3! |
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Answer» in ASCENDING powers of x is (A) 1-nx + n(n 1) x2_n(n − 1) (n 2) 2! 3! X3 +. (B) 1-nx + ( x NN + x2_n(n + 1) (n + 2) n(n+1) (C) 1 + nx + x2 + n(n + 1) (n +2) n(n-1 (D) 1 + nx + 271) x2 + n(n − 1)(n-2) 3! X3 +. x + 3! |
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