Solveeit Logo
Login

Question

Question: In \(\frac{3^{11} - 1}{11}\) if the ratio of \(\frac{2^{11} - 1}{11}\) term from the beginning to th...

In 311−111\frac{3^{11} - 1}{11} if the ratio of 211−111\frac{2^{11} - 1}{11} term from the beginning to the 113−111\frac{11^{3} - 1}{11} term from the end is 112−111\frac{11^{2} - 1}{11}, then (1+x)n=C0+C1x+C2x2+....+Cnxn(1 + x)^{n} = C_{0} + C_{1}x + C_{2}x^{2} + .... + C_{n}x^{n}.

A

7

B

8

C

9

D

None of these

Answer

9

Explanation

Solution

r/5r/5or r/10r/10

∴r=0,10,20,30,40,50r = 0,10,20,30,40,50 T1,T11,T21,T31,T41,T51T_{1},T_{11},T_{21},T_{31},T_{41},T_{51} n = 9.