d/du[lnu] = ?
u'/u
∫eu du = ?
eu + C
d/dx[sinx] = ?
d/dx[cosx] = ?
cosx
-sinx
∫sinu du
∫cosu du
-cosu + C
sinu + C
This point is found where f" changes signs
Point of Inflection
d/du[eu] = ?
eu
∫1/u du = ?
ln|u| + C
d/dx[tanx] = ?
sec2x
∫tanu du
ln|secu| + C
or -ln|cosu| + C
This formula is used for total distance traveled
Integral from a to b of |v(t)|
d/dx[ax] = ?
(ax)(lna)
∫e2xdx = ?
1/2 e2x + C
d/dx[cotx] = ?
-csc2x
∫cotu du
-ln|cscu| + C
or ln|sinu| + C
This is the limit as x approaches infinity of (2x4+3x)/(5x4+x)
2/5
d/dx[logax] = ?
1/(xlna)
∫1/x3 dx = ?
-1/2 x-2 + C
d/dx[secx] = ?
secx * tanx
∫secu du = ?
ln|secu + tanu| + C
This is what f' is doing when f is concave down
Decreasing
(f-1)'(x) = ?
1/[f'(f-1(x))]
∫ax dx = ?
(1/lna) * ax + C
d/dx[cscx] = ?
-cscx * cotx
∫cscu du = ?
-ln|cscu + cotu| + C
d/dx [3sin2(5x)] = ?
30sin(5x)cos(5x)