Trigonometic Functions Flashcards
(22 cards)
0
Q
cos(t) = ?
A
X
1
Q
sin(t) = ?
A
Y
2
Q
tan(t) = ?
A
Y/X
3
Q
sec(t) = ?
A
1/X
4
Q
csc(t) = ?
A
1/Y
5
Q
cot(t) = ?
A
X/Y
6
Q
Domain: sin, cos
A
All real.
7
Q
Domain: tan, sec
A
All real; except: pi/2+n(pi)
8
Q
Domain: cot, csc
A
All real; except n(pi)
9
Q
Positive functions in Q1?
A
All.
10
Q
Positive functions in Q2?
A
sin, csc
11
Q
Positive functions in Q3?
A
tan, cot
12
Q
Positive functions in Q4?
A
cos, sec
13
Q
The six trigonometric functions are?
A
Sine, Cosine
Secant, Cosecant
Tangent, Cotangent
14
Q
The even functions?
A
Cosine, Secant
15
Q
The odd functions?
A
Sine, Cosecant, Tangent, Cotangent.
16
Q
Reciprocal: csc(t)
A
1 / sin (t)
17
Q
Reciprocal: sec(t)
A
1 / cos(t)
18
Q
Reciprocal: cot(t)
A
1 / tan(t)
19
Q
Reciprocal: tan(t)
A
sin(t) / cos(t)
20
Q
Reciprocal: cot(t)
A
cos(t) / sin(t)
21
Q
Pythagorean Identities
A
sin(t)* + cos(t)* = 1
tan(t)* + 1 = sec(t)*
1 + cot(t)* = csc(t)*
* ^2
