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Question

Question: The sum of coefficients in (x + 2y + z)<sup>10</sup> =...

The sum of coefficients in (x + 2y + z)10 =

A

210

B

310

C

410

D

None of these

Answer

410

Explanation

Solution

Put x = y = z = 1

Sum of coefficient = (1+2 + 1)10 = 410