- #1
naden1
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Homework Statement
Find the first four terms in the expansion of [itex]\left(1-3x\right)^{3/2}[/itex]. By substituting in a suitable value of x, find an approximation to [itex]97^{1/2}[/itex].
Homework Equations
The Attempt at a Solution
I used the binomial expansion formula to work the answer and it is 1- 4.5x - (22x2/8) - (247x3/48) + ... .
Is that correct?
I did the second part and i got 0.848. What do you think?
Thanks in advance for any help.