Establish and use the formula ∫ (1/x) dx = ln|x| + c for x ≠ 0 and ∫ (f′(x)/f(x)) dx = ln|f(x)| + c for f(x) ≠ 0.

u4-t1-s1-d4

Request an applet

Describe what students should see or notice. That's the cue to build — requests are what get built next.