Things to remember math Flashcards
(21 cards)
1
Q
cos@
A
x/r
2
Q
sinx
A
y on the unit circle
3
Q
tanx
A
sinx/cosx
4
Q
secx
A
1/cosx
5
Q
cscx
A
1/sinx
6
Q
cos2x
A
1-2sin^x
7
Q
sin2x
A
2sinxcosx
8
Q
cos^2@+sin^2@
A
1
9
Q
cos^2@
A
1-sin^2@
10
Q
sin^2@
A
1–cos^2@
11
Q
cos2x-cosx
A
2cos^2x-1
12
Q
rsin@
A
y=rsin@
13
Q
rcos@
A
x=rcos@
14
Q
x/r
A
cos@
15
Q
x^2+y^2=
A
x^2+y^2=r^2
16
Q
tan🥧/2
A
Undefined
17
Q
tan🥧/4
A
1
18
Q
cot🥧/3
A
rad3/3
19
Q
tan🥧/6
A
rad3/3
20
Q
csc🥧/3
A
2rad3/3
21
Q
sec🥧/4
A
rad2
