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The value of (21C1 -10C1) +(21C2 -10C2) +(21C3 -10C3) +(21C4 -

Question

The value of (21C1 $-$ 10C1) $+$ (21C2 $-$ 10C2) $+$ (21C3 $-$ 10C3) $+$ (21C4 - 10C4) $+ +$ (21C10 $-$ 10C10), is $2^{20} - 2^{9}$ (2) $2^{20} - 2^{10}$ (3) $2^{21} - 2^{11}$ (4) $2^{21} - 2^{10}$

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Noah Discussed

The value of (21C1

-

10C1)

+

(21C2

-

10C2)

+

(21C3

-

10C3)

+

(21C4 - 10C4)

+ +

(21C10

-

10C10), is

2^{20} - 2^{9}

(2)

2^{20} - 2^{10}

(3)

2^{21} - 2^{11}

(4)

2^{21} - 2^{10}

13 mins ago

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