[" 18.If three successive cofficients in the expansion of "],[(1+x)^(n)" are "28,56" and "70," find "'n" '."]

If three successive coefficients in the expansion of (1+x)^n are 28, 56 and 70, find n.

If three successive coefficients in the expansion of (1+x)^(n) be 220,495 and 972 find n.

If three successive coefficients in the expansion of (1+x)^n be 220,495 and 972, find n.

If three successive coefficients in the expansion of (1 + x)^n are 220, 495 and 792 respectively, find the value of n

If the three consecutive coefficients in the expansion of (1+x)^(n) are 28,56, and 70 ,then the value of n is.

If the three consecutive coefficients in the expansion of (1+x)^n are 28, 56, and 70, then the value of n is.

If the three consecutive coefficients in the expansion of (1+x)^n are 28, 56, and 70, then the value of n is.

If the three consecutive coefficients in the expansion of (1+x)^n are 28, 56, and 70, then the value of n is.