2122 Confirm the derivative formula by differentiating theappropriate Maclaurin series
Chapter 9, Problem 21(choose chapter or problem)
Confirm the derivative formula by differentiating the appropriate Maclaurin series term by term.
\(\text { (a) } \frac{d}{d x}[\cos x]=\sin x\)
\(\text { (b) } \frac{d}{d x}[\ln (1+x)]=\frac{1}{1+x}\)
Equation Transcription:
text transcription:
d/dx[cos x] = - sin x
d/dx[In (1+x)] = 1/1+x
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