Fundamental Identities Flashcards
1
Q
Sinu=
A
1/cscu
2
Q
Cscu=
A
1/sinu
3
Q
Cosu=
A
1/secu
4
Q
Secu
A
1/cosu
5
Q
Tanu
A
1/cotu
6
Q
Cotu
A
1/tanu
7
Q
Tanu/tan2u=
A
Sin(2)u/cos(2)u
8
Q
Cotu/cot2u
A
Cos(2)u/sin(2)u
9
Q
Sin & cos Pythagorean identities
A
Sin2u+cos2u=1
Sin2u=1-cos2u
Cos2u=1-sin2u
10
Q
Tan and sec Pythagorean identity
A
1+tan2u=sec2u
1=sec2u-tan2u
Tan2u=sec2u-1
11
Q
Cot and csc Pythagorean idenu
A
1+cot2u=csc2u
1=cot2u-csc2u
Cot2u=csc2u-1
12
Q
1-csc2u, 1-sec2u
A
-cot2u, -tan2u ect