JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

The sum of the series $2.^{20} C_{0} + 5.^{20} C_{1} + 8.^{20} C_{2} + 11.^{20} C_{3} + ...... + 62.^{20} C_{20}$ is equal to

A
2²³
B
2²⁵
C
2²⁴
D
2²⁶

Solution

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