Unit Two: Derivatives Flashcards
1
Q
Definition of derivatives
A
(f(X+change inX) - f(x))/change in x as the limit of change in X goes to 0
2
Q
Y’ {f(x)/g(x)}
A
Low d high minus high d low all over low low
(g(x)f’(x) - f(x)g’(x))/(g(x))^2
3
Q
Y’ {f(x)*g(x)}
A
f’(x)g(x) + f(x)g’(x)
4
Q
Y’ {c*f(x)}
A
c *f’(x)
5
Q
Y’ {c}
A
0
6
Q
Y’ {x^n}
A
n*x^(n-1)
7
Q
Y’ {f(x) +/- g(x)}
A
f’(x) +/- g’(x)
8
Q
Y’ {sin x}
A
cos x
9
Q
Y’ {cos x}
A
-sin x
10
Q
Y’ {tan x}
A
sec^2 x
11
Q
Y’ {csc x}
A
-csc x *cot x
12
Q
Y’ {cot x}
A
-csc^2 x
13
Q
Y’ {sec x}
A
secx * tanx
14
Q
Y’ [f(g(x))]
A
F’ (g(x)) * g’(x)
15
Q
What is the difference between the explicit and implicit form?
A
E- the function is solved for y
I- the function is not solved for y (includes the derivatives of all variables)