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Limit Definition of Derivative
lim as x approaches a = f(x)-f(a)/(x-a)
FTC 1
On the integral of a to b of f(x)dx =F(b)-F(a) where F’(x)=f(x)
lim as b approaches -inf of arctanb
-pi/2
lim as b approaches inf (1-3/b) to the b
=e^-3
IVT terms and conditions
If a function is continuous on a closed interval [a, b], and y is between f(a) and f(b) then it takes on every value between f(a) and f(b) at least once on that open interval
MVT
If a function is continuous on a closed interval [a, b] and differentiable on the open interval (a, b), then there exists at least one point c in (a, b) such that the derivative at that point equals the average rate of change of the function over [a, b].
Derivative of an inverse
1 state what you need to find f^-1 (a) 2) f(b)=a 3) f’(b) 4) f^-1 (a) =1/f’(b)
Exponential growth/decay differential and solution
dy/dt=ky y(t)=ce^kt
area of an equilateral triangle
The area of an equilateral triangle can be calculated using the formula A = (sqrt(3)/4) s², where s is the length of a side.
Area of a trapezoid
The area of a trapezoid can be calculated using the formula A = (1/2)(b1 + b2)h, where b1 and b2 are the lengths of the two bases and h is the height.
Average Value Formula
The average value of a function f on the interval [a, b] is given by 1/b-a int on a to b abc value of f’(x)dx
Average rate of change formula
f(b)-f(a)/(b-a)
Newton’s Cooling Law Differential and Solution
dT/dt=K(T-Tsub s) T=T sub s + (T0-Ts) e^kt
EVT
states that a continuous function on a closed interval [a, b] must attain both a maximum and a minimum value within that interval.
Logistic Growth Differential and Solution
dP/dt = kP(1 - P/M), P(t) = M/(1 + Ae^{-kt}) A=M-Po/Po
Volume of disc
pi int a to b [R(x)]² dx
Volume of washer
V=pi int from a to b [R(x)] -[r(x)]² dx
Euler’s method
x, y, m, m(change in x), y new
Integration By Parts
uv- int vdu using LIATE
Parametric Derivatve
dy/dt / dx/dt =dy/dt
Parametric second derivative
d/dx (dy/dx0 over dx/dt
Speed
abs value of speed is the square root of (x’)² + y’(t)²) and is also arc length
Arc lengths formulas
int of a to b square root 1+ f’(x) ² dx or of the square root [r²]+[dr/d theta]² d theta
TD traveled
t intital to t final integral of abs value of v dt or int of t0 to tf square root x’(t)² + y’(t)² dt
Polar Form of Area Equation
Area = 1/2 int of theta1 to theta2 r² dtheta
Sum of a Geometric Series
a sub (n+1) over (1-abs value of r)
Maclaurin Series of 1/(1+x)
summation n=0 to inf (-1)^n x^n =1+x+x²/2!+x³/3!
Macluarin Series for cos(x)
summation n=0 to fin (-1)^n x²n= 1 - x²/2! + x⁴/4! - x⁶/6! + …
Maclaurin Sries of e^x
summation n=0 to inf (x^n/n!) = 1 + x + x²/2! + x³/3! + …
Maclaurin Series for sin(x)
summatin n=0 to inf (-1)^n x^(2n+1)/(2n+1)! = x - x³/3! + x⁵/5! - …
Lagrange Error
If P sub n (x) is the nth degree Taylor polynomial of f(x) anout c and abs value of f to the (n+1) (t) is less than or equal to M for alll t between x and c, |f(x)-P sub n (x)| less than or equal to (M/(n+1)!) |x-c|^n+1
Alt series error
|Sinf-Sn| less than or equal to |an+1| = abs value first negleted term.
If S sub n = summation of (-1)^n a sub n is the nth partial sum of a convergent alt series if then the first sentence.