Precalculus Exam one review

sin² θ + cos² θ

1

1 + tan² θ

sec² θ

1 + cot² θ

csc² θ

r.sin θ

1 / csc θ

r.cos θ

1 / sec θ

r.tan θ

1 / cot θ

q.tan θ

sin θ / cos θ

q.cot θ

cos θ / sin θ

sin θ

y / r

cos θ

x / r

tan θ

y / x (if 𝑥≠0)

csc θ

r / y (if 𝑦≠0)

sec θ

r / x (if 𝑥≠0)

cot θ

x / y (if 𝑦≠0)

Arc Length Formula

s = rθ

Area of a Sector Formula

½r²θ

linear Velocity formula

v = s / t

Angular Velocity

v = s / t