Formulas Flashcards
derivative of a^x
a^x (ln(a))
derivative of loga(x)
1/(xlna)
derivative of cos(x)
-sin(x)
derivative of sin(x)
cos(x)
linear approximation formula
f(x) = f’(a)(x-a) + f(a)
newtons method
x(n+1) = xn - (f(xn) / f’(xn))
derivative of arcsin(x)
1/ root(1 - x^2)
derivative of arccos(x)
- 1 / root(1 - x^2)
derivative of arctan(x)
1 / (1 + x^2)
when is there not a global max or min
when the function approaches infinity
taylor polynomial third degree
f(x) = f(a) + f’(a)(x-a) + (f’‘(a)/2!)(x-a)^2 + (f’’‘(a)/3!)(x-a)^3
l’hopitals rules
lim x>a, f(x)/g(x) is equal to lim x>a, f’(x)/g’(x)
trapezoidal rule
x = (b-a)/2n
A = x(f(x0) + f(xn) + 2(f(x1) + f(x2)…))
area of a circle
A = pi(r^2)
volume of a cylinder
V = pi(r^2)h
trig identity
sin^2(x) + cos^2(x) = 1
integration by parts formula
integral udv = uv - intergal vdu
average value
1/(b-a) intergral b,a
quadratic formula
(-b +/- root(b^2 - 4ac))/2a