Binomial TheoremHard
Question
If
n-kCr = xCy then -
Options
A.x = n + 1 ; y = r
B.x = n + 1 ; y = r
C.x = n ; y = r
D.x = n + 1 ; y = r + 1
More Binomial Theorem Questions
The co-efficient of x in the expansion of (1 - 2 x3 + 3 x5) is :...The 5th term of the expansion of (x − 2)8 is -...The number of terms in the expansion of (1 + 5√2x)9 + (1 − 5√2x)9 is -...The sum of the co-efficients of all the even powers of x in the expansion of (2x2 - 3x + 1)11 is -...f n is odd, then C02 − C12 + C22 − C22 − C32 +....+ (−1)n Cn2 =...