If the expansion of ${(1 + x)}^{50}$ , the sum of coefficients of add powers of $x$ is

2^{50}

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2^{49}

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None of these

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Solution

The correct option is C $2^{49}$
The sum of coefficients of odd powers of $x$
$=^{50} C_{1} +^{50} C_{3} + . . . +^{50} C_{49} = 2^{50 - 1} = 2^{49}$ .

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