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Binomial Expansion watch

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1. Ok..so i've expanded [ 1 - x/10 ]^-3 as far as the x^3 term to get:

1 + 3x/10 + 3x^2/50 + x^3/1000 - which is correct

now its asking me to determine the value of (1/0.99)^3

so i've put in x=0.1 into the expansion..

but it wants it to 14 decimal places. how do i do that?

thanks.
2. 14 D.P.?
usually it will only ask to 5 or 6 in the exam
3. (Original post by misslouiseyb)
14 D.P.?
usually it will only ask to 5 or 6 in the exam
yeh 14..
4. (Original post by ShOcKzZ)
Ok..so i've expanded [ 1 - x/10 ]^-3 as far as the x^3 term to get:

1 + 3x/10 + 3x^2/50 + x^3/1000 - which is correct

now its asking me to determine the value of (1/0.99)^3

so i've put in x=0.1 into the expansion..

but it wants it to 14 decimal places. how do i do that?

thanks.
Use excel?

I plugged 0.1 into your equation and got 1.03060100000000 to 14dp....seems a little daft to ask for all of those dps when the final ones are all zeros...
5. Lolz.. that's quite a funny one. I've never seen that come up before!

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