Q. In the expansion of ${(1 + x)}^{50},$ the sum of the coefficient of add power of $x$ is
A) Zero
B) $2^{49}$
C) $2^{50}$
D) $2^{51}$
Explanation
(b)
In the expansion of ${(1 + x)}^{50}$ the sum of the coefficient of odd powers
$= C_{1} + C_{3} + C_{5} + ... = 2^{50 - 1} = 2^{49}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.