# taylor series

#### twofortwo

find the taylor series of y=x^(1/2) centered at a=4 and use the first two terms to apporximate 4.1^(1/2)

thanx in advance

Last edited:

#### Bruno J.

MHF Hall of Honor
find the taylor series of y=x^91/2) centered at a=4 and use the first two terms to apporximate 4.1^(1/2)

thanx in advance
Error : invalid expression.

twofortwo

#### HallsofIvy

MHF Helper
find the taylor series of y=x^91/2) centered at a=4 and use the first two terms to apporximate 4.1^(1/2)

thanx in advance
Assuming you mean $$\displaystyle y= x^{91/2}$$, where, exactly, is your problem? Do you know how to differentiate $$\displaystyle x^n$$? Do you know the formula for the Taylor's series of a function?

twofortwo

#### twofortwo

sorry for the typo.
its the sqareroot of x.

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