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CSSS 505
Calculus Summary Formulas
Differentiation Formulas
1. 1)( −= nn nxxdxd
17. dxdu
dxdy
dxdy ×= Chain Rule
2. fggffgdxd ′+′=)(
3. 2)(g
gffggf
dxd ′−′
=
4. )())(())(( xgxgfxgfdxd ′′=
5. xxdxd cos)(sin =
6. xxdxd sin)(cos −=
7. xxdxd 2sec)(tan =
8. xxdxd 2csc)(cot −=
9. xxxdxd tansec)(sec =
10. xxxdxd cotcsc)(csc −=
11. xx eedxd =)(
12. aaadxd xx ln)( =
13. x
xdxd 1)(ln =
14. 21
1)sin(x
xArcdxd
−=
15. 211)tan(x
xArcdxd
+=
16. 1||
1)sec(2 −
=xx
xArcdxd
Trigonometric Formulas
1. 1cossin 22 =+ θθ2. θθ 22 sectan1 =+3. θθ 22 csccot1 =+4. θθ sin)sin( −=− 5. θθ cos)cos( =− 6. θθ tan)tan( −=− 7. ABBABA cossincossin)sin( +=+8. ABBABA cossincossin)sin( −=−9.
BABABA sinsincoscos)cos( −=+
10.
BABABA sinsincoscos)cos( +=−
11. θθθ cossin22sin =2
12.
θθθθθ 222 sin211cos2sincos2cos −=−=−=
13. θθ
θθcot
1cossintan ==
14. θθ
θθtan
1sincoscot ==
15. θ
θcos
1sec =
16. θ
θsin
1csc =
17. θθπ sin)2
cos( =−
18. θθπ cos)2
sin( =−
Integration Formulas
Definition of a Improper Integral
∫b
adxxf )( is an improper integral if
1. becomes infinite at one or more points of the interval of integration, or f2. one or both of the limits of integration is infinite, or 3. both (1) and (2) hold.
1. Caxdxa +=∫
2. ∫ −≠++
=+
1 ,1
1
nCnxdxx
nn
3. ∫ += Cxdxx
ln1
4. ∫ += Cedxe xx
5. ∫ += Ca
adxax
x
ln
6. ∫ +−= Cxxxdxx ln ln
7. ∫ +−= Cxdxx cos sin
8. ∫ += Cxdxx sin cos
9. ∫ +−+= CxCxdxx coslnor secln tan
10. ∫ += Cxdxx sinln cot
11. ∫ ++= Cxxdxx tansecln sec
12. ∫ +−= Cxxdxx cotcscln csc
13. Cxxdx +=∫ tan sec2
14. ∫ += Cxdxxx sec tansec
15. ∫ +−= Cxdxx cot csc2
16. ∫ +−= Cxdxxx csc cotcsc
17. ∫ +−= Cxxdxx tan tan 2
18. ∫ +
=
+C
axArc
axadx tan1
22
19. ∫ +
=
−C
axArc
xadx sin
22
20. ∫ +=+=−
CxaArc
aC
ax
Arcaaxx
dx cos1sec122
Formulas and Theorems 1a. Definition of Limit: Let f be a function defined on an open interval containing c (except possibly at c ) and let L be a real number. Then means that for each Lxf
ax=
→)(lim 0 >ε there
exists a 0 >δ such that ε )( <− Lxf whenever δ 0 <−< cx .
1b. A function y = is )(xf continuous at ax = if i). f(a) exists ii). exists )(lim xf
ax →iii). )(lim af
ax=
→4. Intermediate-Value Theorem
A function that is continuous on a closed interval [ takes on every value between .
)(xfy = and )( fa
]ba,)(bf
Note: If is continuous on [ and and differ in sign, then the equation f ]ba, )(af )(bf has at least one solution in the open interval ( . 0)( =xf ),ba
5. Limits of Rational Functions as ±∞→x
i). 0)()(lim =
±∞→ xgxf
x if the degree of )( of degree the)( xgxf <
Example: 03322
lim =+
−∞→ x
xxx
ii). )()(
xgxf
x ±∞→lim is infinite if the degrees of )( of degree the)( xgxf >
Example: ∞=−
+∞→ 82
23lim
x
xxx
iii). )()(
xgxf
x ±∞→lim is finite if the degree of )( of degree the)( xgxf =
Example: 52
2510
2322lim −=−
+−∞→ xx
xxx
6. Average and Instantaneous Rate of Change
i). Average Rate of Change: If ( ) ( )1,1 and 0,0 yxyx
y
are points on the graph of
, then the average rate of change of with respect to )(xfy = x over the interval
is [ ]10 , xxxy
xxyy
xxxfxf
∆∆=
−−
=−−
01
01
01
01 )()(.
ii). Instantaneous Rate of Change: If ( is a point on the graph of , then
the instantaneous rate of change of with respect to
)00 , yxy
)(xfy =x at is . 0x )( 0x′f
7. h
xfhxfh
xf )()(0
lim)( −+→
=′
8. The Number e as a limit
i). en
nn=
+
+∞→
11lim
ii). ennn
=
+
→
1
11
0lim
9. Rolle’s Theorem If is continuous on [ and differentiable on ( such that , then there
is at least one number in the open interval such that .
f ] )ba,c
ba,)
)()( bfaf =0=( ba, )(′ cf
10. Mean Value Theorem If is continuous on [ and differentiable on ( , then there is at least one number c
in such that
f
(a] )
)ba, ba,
b, )()( cfa
aff ′=)(b
b−−
.
11. Extreme-Value Theorem If is continuous on a closed interval [ , then has both a maximum and minimum
on [ ] .
fa
]ba, )(xfb,
12. To find the maximum and minimum values of a function , locate )(xfy =1. the points where is zero )(xf ′ or where fails to exist. )(xf ′2. the end points, if any, on the domain of . )(xfNote: These are the only candidates for the value of x where may have a maximum or a )(xf minimum.
13. Let f be differentiable for and continuous for a , bxa << bxa ≤≤1. If ′f for every 0)( >x x in , then is increasing on . ( ba, ) f [ ]ba,2. If ′f for every 0)( <x x in , then is decreasing on [ ] . ( ba, ) f ba,