trig Flashcards
1
Q
two trig triangles
A
2
Q
proof of sin rule
A
3
Q
proof of cosine rule
A
4
Q
proof of area of a triangle
A
5
Q
unit circle
A
6
Q
radians
A
7
Q
arc length - radians
A
8
Q
area of sector - radians
A
9
Q
derive small angle approximations
A
????
10
Q
trig graphs + period
A
11
Q
inverse trig functions
A
Arcsin / Arccos / Arctan
12
Q
how to draw inverse trig
A
Restrict domain to make function 1 to 1
Reflect sin / cos / tan graph in line y=x
13
Q
inverse trig equations
A
14
Q
Reciprocal of normal trig function
A
Cosec / sec / cot
15
Q
asymptote for reciprocal trig
A
Must have asymptote when tan / cos / sin go through x axis because 1 divided by 0 is impossible
16
Q
Trig identities
A
17
Q
Proof of compound angle formula
A
18
Q
Double angle formula
A
19
Q
equivalent forms
A
22
Q
UNDERSTAND COS AND SIN AS TRANSLATIONS OF EACHOTHER
A
24
Q
small angle approx - cos5x
A
take theta as 5x
so square that too
