jee-main 2019 Q67

jee-main · India · session1_09jan_shift2 Binomial Theorem (positive integer n) Find a Specific Coefficient in a Single Binomial Expansion

The coefficient of $t^4$ in the expansion of $\left(\frac{1-t^6}{1-t}\right)^3$ is
(1) 10
(2) 14
(3) 15
(4) 12

The coefficient of $t^4$ in the expansion of $\left(\frac{1-t^6}{1-t}\right)^3$ is\\
(1) 10\\
(2) 14\\
(3) 15\\
(4) 12