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Math Help - Complex Variables and Binomial Theorem

  1. #1
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    Complex Variables and Binomial Theorem

    I need to solve (2-i)^5 using Binomail Theorem which is (z+v)^n = \sum_{j=o}^{n}\binom{n}{j} z^{n-j}v^j

    Now here z = 2, n = 5 and will v = -1 or -i

    Thank you
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  2. #2
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    Re: Complex Variables and Binomial Theorem

    Quote Originally Posted by flametag2 View Post
    I need to solve (2-i)^5 using Binomail Theorem which is (z+v)^n = \sum_{j=o}^{n}\binom{n}{j} z^{n-j}v^j

    Now here z = 2, n = 5 and will v = -1 or -i
    Then why don't you do that? EXPAND
    \sum_{j=0}^{5}\binom{5}{j} (2)^{n-j}(-i)^j
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