Can anyone please give me a hint on any of the following Taylor expansions? That would be so helpful!!(adsbygoogle = window.adsbygoogle || []).push({});

for all three: Find the first non-zero term in the Taylor series about x = 0

problem 1

[tex]\frac{1} {sin^2x} - \frac{1} {x^2}[/tex]

everytime I differentiate the result is zero...so that can't be right

problem 2

[tex] \frac{(sinx - tan^{-1})} {x^2ln(1+x)} [/tex]

problem 3

[tex] \frac{(e^{2x} - 2e^x + 1)} {cos(3x) - 2cos(2x) + cosx}[/tex]

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# Homework Help: Taylor series

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