aali4480 aali4480 31-01-2024 Mathematics contestada Number of dissimilar terms in the expansion of (x1+x2+.....+xn)3 isA.n² (n+1)²/4B.n(n+1)(n+2)/6C.ⁿ⁺¹C₂+ⁿC₂D.n³+3n²/4