Trig Identities Flashcards
1
Q
(Reciprocal) csc(x)=
A
1/sin(x)
2
Q
(Reciprocal) sec(x)=
A
1/cos(x)
3
Q
(Reciprocal) cot(x)=
A
1/tan(x); cos(x)/sin(x)
4
Q
(Even-Odd) sin(-x)=
A
-sin(x)
5
Q
(Even-Odd) cos(-x)=
A
cos(x)
6
Q
(Even-Odd) tan(-x)=
A
-tan(x)
7
Q
(Pythagorean) sin^2(x)+cos^2(x)=
A
1
8
Q
(Pythagorean) 1+tan^2(x)=
A
sec^2(x)
9
Q
(Pythagorean) 1+cot^2(x)=
A
csc^2(x)
