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Mathematics
The value of 2C20+(22/2)C1+(23/2)C2+.....+(211/11)C10 is
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Q. The value of $2C^2_0+\frac{2^2}{2}C_1+\frac{2^3}{2}C_2+.....+\frac{2^{11}}{11}C_{10}$ is
Binomial Theorem
A
$\frac{1}{11}(2^{11}-1)$
20%
B
$\frac{1}{12}(3^{11}-1)$
20%
C
$\frac{1}{21}(11^3-1)$
20%
D
$\frac{1}{11}(11^2-1)$
40%
Solution:
Correct answer is (b) $\frac{1}{12}(3^{11}-1)$