Triganometry Flashcards
(36 cards)
1
Q
sin30
A
1/2
2
Q
sin60
A
√3/2
3
Q
sin45
A
1/√2
4
Q
cos30
A
√3/2
5
Q
cos60
A
1/2
6
Q
cos45
A
1/√2
7
Q
tan30
A
1/√3
8
Q
tan60
A
√3
9
Q
tan45
A
1
10
Q
cosine rule
A
a^2 = b^2 + c^2bcosA
11
Q
sine rule
A
a/sinA = b/sinB = c/sinC
12
Q
area of non right angles triangles
A
1/2 x absinC
13
Q
how often does a sin graph repeat
A
180
14
Q
how often does a cos graph repeat
A
360
15
Q
how often does tan graph repeat
A
180
16
Q
sinx/cosx =
A
tanx
17
Q
sin^2x + cos^2x =
A
1
18
Q
sin^2x =
A
1 - cos^2x
19
Q
cos^2x =
A
1 - sin^2x
20
Q
sin^2x/cos^2x =
A
tan^2x
21
Q
1/tanx =
A
cosx/tanx
22
Q
sinx = sin(?)
A
180 - x
23
Q
cosx = cos(?)
A
360 - x
24
Q
tanx = tan(?)
A
x + 180
25
sin2x
2sinxcosx
26
cos2x
cos^2x - sin^2x OR
1 - 2sin^2x OR
2cos^2x - 1
27
tan2x
2tanx / 1 - tan^2x
28
1 + tan^2x
sec^2x
29
1 + cot^2x
cosec^2x
30
sin(a + b)
sinAcosB + cosAsinB
31
sin(a - b)
sinAcosB - cosAsinB
32
cos(a + b)
cosAcosB - sinAsinB
33
cos(a - b)
cosAcosB + sinAsinB
34
tan(a + b)
tanA + tanB /1 - tanAtanB
35
tan(a - b)
tanA - tanB/ 1 + tanAtanB
36
