Trigonometry Core 2

Useful things to know for Trig in Core2 :)

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180°
π radians
1 of 12
360°
2π radians
2 of 12
Arc Length
L=rθ (l=length r=radius θ=angle in radians)
3 of 12
Area of a sector
A=½(r²θ) (A= area r=radius θ=angle in radians)
4 of 12
Trig Identities (=1)
sin²θ+cos²θ=1
5 of 12
Trig Ideneitities (=tanθ)
sinθ/cosθ=tanθ
6 of 12
Cosine Rule
a²=b²+c²-2bccos A
7 of 12
Sine Rule
SinA/a=SinB/b=SinC/c
8 of 12
Area Of A Triangle
A=½abSinC
9 of 12
Tan Graph
Repeats every 180 degrees, never touches 0 on x axis. angle x then add 180 degrees
10 of 12
Sin Graph
Repeats every 360 degrees. Between 1 and -1 on y axis. x, 180-x then add 360 degrees to each angle
11 of 12
Cos Graph
Repeats every 360 degrees. Angle x, -x then add 360 degrees to each.
12 of 12

Other cards in this set

Card 2

Front

360°

Back

2π radians

Card 3

Front

Arc Length

Back

Preview of the front of card 3

Card 4

Front

Area of a sector

Back

Preview of the front of card 4

Card 5

Front

Trig Identities (=1)

Back

Preview of the front of card 5
View more cards

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