trig bullshit Flashcards
1
Q
when is x small
A
-0.1 < x < 0.1
2
Q
when x is small sinx is roughly
A
x
3
Q
when x is small tanx is roughly
A
x
4
Q
when x is small cosx is roughly
A
1- (x^2)/2
5
Q
sec^2
A
1+tan^2
6
Q
cosec^2
A
1+cot^2
7
Q
cot
A
cos/sin
8
Q
arc length (very rad)
A
θr
9
Q
sector area (very rad)
A
((r^2)θ)/2
