Trig formulas Flashcards
1
Q
sinxcscx=
A
1
2
Q
cosxsecx=
A
1
3
Q
tanxcotx=
A
1
4
Q
tanx=
A
sinx/cosx
5
Q
cotx=
A
cosx/sinx
6
Q
sin^2x+cos^2x=
A
1
7
Q
tan^2x+1=
A
sec^2x
8
Q
cot^2x+1=
A
csc^2x
9
Q
sin2x
A
2sinxcosx
10
Q
cos2x=
A
cos^2x-sin2^x
2cos^2x-1
1-2sin^2x
11
Q
sin^2x=
A
(1-cos2x)/2
12
Q
cos^2x=
A
(1+cosx)/2
