Unit Five: Logs Flashcards
What is the integration of 1/x?
Ln |x| + C
What is the derivative of Ln x?
1/x. The derivative of the natural log of something is one over something times the derivative of the something.
Break apart Ln ab
Ln a + Ln b
Break apart Ln a/b
Ln a - Ln b
Break apart Ln a^P
P times Ln a
How do you find the derivative of an equation without the quotient rule?
Ex: Y=a/b
Natural log both sides, then derive both sides. Remember to include the derivative of y. (dy/dx) If you end up with a y then substitute what y equals back in.
What is the integration of tan(x)?
-Ln Icos(x)I + C
What is the integration of cot(x)?
Ln Isin(x)I + C
What is the integration of sec(x)?
Ln Isec(x) + tan(x)I + C
What is the integration of csc(x)?
-Ln Icsc(x) + cot(x)I + C
What is the integration of sin(x)?
-cos(x)
What is the integration of cos(x)?
sin(x)
What is the derivative of tan(x)?
sec^2(x)
What is the derivative of cot(x)?
-csc^2(x)
What is the derivative of sec(x)?
sec(x)*tan(x)
What is the derivative of csc(x)?
-csc(x)*cot(x)
What is the derivative of sin(x)?
cos(x)
What is the derivative of cos(x)?
-sin(x)
What is the formula for a trapezoidal approximation of an area under a curve?
(b-a)/n times 1/2 times (f(x0) + 2f(x1) +2f(x2) + … + 2f(xn-1) + f(xn))
What is the formula for Simpson’s rule of an approximation of an area under a curve?
(b-a)/n times 1/3 times (f(x0) + 4f(x1) +2f(x2) +4f(x3) + 2f(x4) + … + 4f(xn-1) + f(xn)) *N must be an even number
How do you find the inverse of a function?
Switch the x and y
What is the domain and range of f equal to relative to the inverse?
They switch
If f and g are inverses what are f(g(x)) and g(f(x)) equal to?
X
How do the graphs of f and its inverse relate?
The inverse is a reflection over y=x