Theorems Flashcards
First fundamental theorem of calculus
For a continuous function, the value of any function is the rate of change of its integral over a given function
∫ba f(x) dx = F(b) − F(a)
h(b) = h(a) + ∫ba h’(x) dx (most common)
Second fundamental theorem of calculus
Derivative of the integral function is equal to the integrand
Common form:
d/dx ∫xa f(t) dt = f(x) * x’ - f(a) * a’
General form:
d/dx ∫vu f(t) dt = v’ * f(v) - u’ * f(u)
Net distance formula
∫ba v(t) dt
Total distance formula
∫ba |v(t)| dt
Average rate of change
[ f(b) - f(a) ] / [b - a]
Average value
[ ∫ba f(x) dx ] / [b - a]
Mean value theorem (derivatives)
If f is continuous and differentiable, then there is some c in (a,b) such that…
f ‘(c) = [ f(b) - f(a) ] / [b - a]
(rate of change)
Mean value theorem (integrals)
If f is continuous, then there is some c in (a,b) such that…
f(c) = [1 / (b - c) ] * ∫bc f(x) dx
(average value)
Intermediate value theorem
If f is continuous over a closed interval [a, b], it encompasses every value between f(a) and f(b) within that range.
Extreme value theorem
If f is continuous on a closed and bounded interval, it is guaranteed to have both a maximum and a minimum value on that interval
Rolle’s theorem
If f is continuous and differentiable on [a,b] AND f(a) = f(b) , Rolle’s theorem shows that there is some c in [a,b] where f ‘(c) = 0