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In the expansion of (1+2x+x^2)^7,the num...

In the expansion of `(1+2x+x^2)^7`,the number of terms will be

A

a)15

B

b)8

C

c)7

D

d)14

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Knowledge Check

  • Let n be a positive even integer. The ratio of the largest coefficinet and the 2nd largest coefficient in the expansion of (1+x)^(n) is 11 : 10 . The number of terms in the expansion of (1+x)^(n) is -

    A
    20
    B
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    C
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    D
    11

  • Let n be a positive even integer. The ratio of the largest coefficient and the 2^(th) largest coefficient in the expansion of (1+x)^n is 11 : 10. Then the number of terms in the expansion of (1+X)^n is

    A
    20
    B
    21
    C
    10
    D
    11

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