Pythagoras Theorem and Trigonometry and Vectors Flashcards
1
Q
Pythagoras Theorem
A
a2+b2=c2
2
Q
Trigonometry
A
SOH CAH TOA
3
Q
Sin angle=
A
Opposite/Hypotenuse
4
Q
Cos angle=
A
Adjacent/Hypotenuse
5
Q
Tan angle=
A
Opposite/Adjacent
6
Q
Angle 30degrees
A
Sin= 1/2
Cos= √3/2
Tan= 1/√3
7
Q
Angle 45 degrees
A
Sin= 1/√2
Cos= 1/√2
Tan= 1
8
Q
Angle 60 degrees
A
Sin= √3/2
Cos= 1/2
Tan= √3
9
Q
The Sine Rule
A
a/sin A = b/sin B = c/sin C
10
Q
The Sine Rule
A
sin A/a = sin B/b = sin C/c
11
Q
The Cosine Rule
A
a2=b2+c2-2bc cosA
12
Q
The Cosine Rule
A
cosA= b2+c2-a2/2bc
13
Q
The Area Rule
A
1/2 ab sinC
1/2 bc sin A
1/2 ac sin B
14
Q
Vector
A
Magnitude and Direction
15
Q
Scalar
A
Magnitude and No Direction
