Question

If the binomial coefficients of three consecutive terms in the expansion of (a + x)^n are in the ratio 1: 7: 42, then find n.
Please answer in a right way.​

Answer 1

Answer:

1 जवाब

If the coefficients of three consecutive terms in the expansion of ( 1 + x )^n are in the ratio of 1:7:42 then n is divisible by