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what formula i need to use in solving binomial theorem and what is the first step i need to do?

  • math -

    you don't solve a theorem. You either prove it or use it.

    (a+b)^n = a^n + na^(n-1)b + ... + nab^(n-1) + b^n

    what do you need to do? The theorem is the formula.

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