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IB mathematics SL - Binomial Theorem

How can we find the constant term of the expansion of ?

Thanks!

How can we find the constant term of the expansion of ?

Thanks!

- Brynlee
**Posts:**0**Joined:**Mon Jan 28, 2013 8:10 pm

The general term of a binomial expansion of the form is given by the following formula:

In your question the general term is

(1)

The constant term must be

So,

Then we can easily calculate the coefficient of this term by plugging in into equation (1)

Hope these help!!

In your question the general term is

(1)

The constant term must be

So,

Then we can easily calculate the coefficient of this term by plugging in into equation (1)

Hope these help!!

- miranda
**Posts:**268**Joined:**Mon Jan 28, 2013 8:03 pm

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