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Write the sum of the coefficients in the...

Write the sum of the coefficients in the expansion of `(1-3x+x^2)^111.`

Text Solution

Verified by Experts

We know,
`(x+a)^n=sum_(k=0)^n ((n), (k)) x^(n-k)a^k`
Given that,
`(1-3x+x^2)^111`
...
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Knowledge Check

  • The sum of the coefficients in the expansion of (1 +x-3x^(2))^(4321) is

    A
    0
    B
    1
    C
    `-1`
    D
    `2^(4320)`

  • What is the sum of the coefficients in the expansion of (1+x)^(n) ?

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    `2^(n)`
    B
    `2^(n)-1`
    C
    `2^(n)+1`
    D
    `n+1`

  • What is the sum of the coefficients in the expansion of ( 1+ x)^(n) ?

    A
    `2^(n)`
    B
    `2^(n) -1`
    C
    `2^(n)+1`
    D
    `n+1`

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