GCSE Trigonometry

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Sine rule
a / sinA = b / sinB = c / sinC or sinA / a = sinB / b = sinC / c
1 of 19
Cosine rule 1
a2 = b2 + c2 - 2bc cos A or b2 = a2 + c2 - 2ac cos B or c2 = a2 + b2 - 2ab cos C
2 of 19
Cosine rule 2
cosA = b2 + c2 - a2 / 2bc
3 of 19
Area of a triangle (trigonometry)
Area = 0.5 x ab x sinC
4 of 19
Sin0
0
5 of 19
Cos0
1
6 of 19
Tan0
0
7 of 19
Sin30
0.5
8 of 19
Cos30
√3 / 2
9 of 19
Tan30
√3 / 3
10 of 19
Sin45
1 / √2
11 of 19
Cos45
1 / √2
12 of 19
Tan45
1
13 of 19
Sin60
√3 / 2
14 of 19
Cos60
0.5
15 of 19
Tan60
√3
16 of 19
Sin90
1
17 of 19
Cos90
0
18 of 19
Tan90
infinity
19 of 19

Other cards in this set

Card 2

Front

a2 = b2 + c2 - 2bc cos A or b2 = a2 + c2 - 2ac cos B or c2 = a2 + b2 - 2ab cos C

Back

Cosine rule 1

Card 3

Front

cosA = b2 + c2 - a2 / 2bc

Back

Preview of the back of card 3

Card 4

Front

Area = 0.5 x ab x sinC

Back

Preview of the back of card 4

Card 5

Front

0

Back

Preview of the back of card 5
View more cards

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