Derivative Flashcards

1
Q

π

A

0

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2
Q

x

A

1

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3
Q

f(x) = 2x^3 - 5x^2 +3x -2

A

6x^2 - 10x +3

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4
Q

f(x)g(x)

A

f’(x)g(x) + f(x)g’(x)

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5
Q

f(x)/g(x)

A

(f’(x)g(x) - f(x)g’(x)) / (g(x)^2)

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6
Q

f(x)^u

A

u(f(x)^u-1)(u’)

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7
Q

Sinx

A

Cosx

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8
Q

Cosx

A

-sinx

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9
Q

Sin^2(x)

A

f(x) = (sinx)^2
f’(x) = 2sinxcosx

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10
Q

√u

A

(1/2)u^(-1/2) u’

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11
Q

e^u

A

(e^u) u’

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12
Q

a^u

A

ln(a) (a^u) u’

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13
Q

loga^u

A

(1/ u ln(a)) u’

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14
Q

tanx

A

sec^2(x)

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15
Q

csc(x)

A

-csc(x)cot(x)

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16
Q

sec(x)

A

sec(x)tan(x)

17
Q

cot(x)

18
Q

ln(u)

A

(1/u) u’

19
Q

ln(u)

A

(1/u) u’

20
Q

f(x) using a limit

A

(Lim h->0) (f(x-h) - f(x)) / h

21
Q

sin^-1(x)

A

1/√(1-x^2)

22
Q

cos^-1(x)

A

-1/√(1-x^2)

23
Q

tan^-1(x)

A

1/(1+ x^2)

24
Q

cot^-1(x)

A

-1/(1+ x^2)

25
csc^-1(x)
-1/(x√((x^2) -1))
26
sec^-1(x)
1/(x√((x^2) -1))
27
When to use squeeze theory
With trig example: -1 < sinx < 1
28
|a| > x
-x > a > x
29
When to use l`hospital rule
0/0 or (+/-infinite)/(+/-infinite)
30
(d/dx)y^2 = (d/dx)x + (d/dx)5
(dy/dx)y = 1 + 0
31
L'hospital equation
(Lim x->a) f(x)/g(x) = (Lim x->a) f'(x)/g'(x)
32
L'hospital equation
(Lim x->a) f(x)/g(x) = (Lim x->a) f'(x)/g'(x)