Tuesday, February 16, 2010

Calculus: Derivatives

Position: r(t)
Velocity: v(t) = derivative of position(r(t)')
Acceleration: a(t) = derivative of velocity(second derivative of position) (v(t)' is the same as r(t)'')

Sin(x)' = Cos(x)
Cos(x)' = -Sin(x)
Tan(x)' = (Sec(x))^2
Csc(x)' = -Cot(x)Csc(x)
Sec(x)' = Tan(x)Sec(x)
Cot(x)' = -(Csc(x))^2
ln(x)' = 1/x

Power Rule:
(x^n)' = nx^(n-1)

Product Rule:
xg = x'g+xg'

Quotient Rule:
x/g = (x'g-xg')/g^2

Chain Rule:
(f of g)(x)' = f'(g(x))g'(x)

ex) F(x) = sin(3x)
F'(x) = 3cos(3x)

More to come...