Trig Ratio Review Flashcards
1
Q
x-y-r
A
sinO=y/r
cosO=x/r
tanO=y/x
2
Q
The Quotient Identity
A
tanO=sinO/cosO
3
Q
The Pythagorean Identity
A
sin^2o+cos^2o=1
4
Q
Sin Law
A
sinA/a = sinB/b = sinC/c
5
Q
Cosine Law
A
c^2 = b^2 + a^2 -2ab(cosC)
