exam 2 Flashcards
1
Q
∫u dv = ?
A
uv - ∫v du
2
Q
y’ of arcsinx = ?
A
1/√1-x^2
3
Q
y’ of arccosx = ?
A
-1/√1-x^2
4
Q
∫lnx = ?
A
don’t know - find another way
5
Q
y’ of ln(9x) = ?
A
1/9x ⋅ 9 = 1/x
6
Q
arc length formula
A
∫√1+(f’x)^2
7
Q
surface area formula
A
∫2pif(x)√1+(f’x)^2
8
Q
sin^2x = ?
A
1-cos(2x)/2
9
Q
cos^2x = ?
A
1+cos(2x)/2
10
Q
∫tanx
A
ln|secx|
11
Q
∫secx
A
ln|secx + tanx|
12
Q
∫cotx
A
ln|sinx|
13
Q
∫cscx
A
-ln|cscx + cotx|
14
Q
√x^2 - a^2 = ?
A
x = a secθ
15
Q
√a^2 - x^2 = ?
A
x = a sinθ
