Q.

If C0,C2,C4,…. are the binomial coefficients in the expansion of (1+x)19 then C0+C2+C4+….C18 is

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a

217

b

220

c

219

d

218

answer is D.

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Detailed Solution

We know that C0+C2+C4+….=2n-1Now,C0+C2+C4+….+C18=219-1=218
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