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Limit Formulas

\lim _ {x \rightarrow a} k = k

\lim _ {x \rightarrow a} [ f (x) \pm g (x) ] = \lim _ { x \rightarrow a} f(x) \pm \lim _ { x \rightarrow a} g(x)

\lim _ {x \rightarrow a} [ f (x) \cdot g (x) ] = \lim _ { x \rightarrow a} f(x) \cdot \lim _ { x \rightarrow a} g(x)

\lim _ {x \rightarrow a} \frac { f(x) } { g (x)} = \frac { \lim_ {x \rightarrow a} f(x) } {  \lim _{x \rightarrow a} g(x) } if \lim _ {x \rightarrow a} g(x) \neq 0

\lim_ {x \rightarrow a} [f (x) ^ {g (x)}] = \lim_ {x \rightarrow} [f(x) ] ^ {\lim _ {x \rightarrow a} g(x)} if f(x) >0

\lim_ {x \rightarrow a} g[f (x)] = g [ \lim _ {x \rightarrow a} f(x) ]

g can be a root, a log, sin, cos, tan, etc.

\lim_ {x \rightarrow a} \sqrt [n] {f (x)} = \sqrt [n] { \lim_ {x \rightarrow a} f(x)}

\lim _ {x \rightarrow a} [log _ a f(x)] = log _a [\lim_ {x \rightarrow a} f(x) ] if a >0 and f(x) > 0

 

L' Hospital Rule

\lim _ { x \rightarrow a} \frac {f(x)} {g (x)} = \lim _ { x \rightarrow a} \frac {f ' (x)} {g ' (x)}

Continuity Formulas

Continuous Function at a Point

\ni f (a)

\ni \lim _ {x \rightarrow a} f(x) \leftrightarrow \lim _ {x \rightarrow a ^ {-}} f(x) = \lim_ { x \rightarrow a^ {+}} f(x)

f(a) = \lim {x \rightarrow a} f(x)

Directional Continuity

Left-Continuous Function

f(a) = \lim _ {x \rightarrow a ^ {-}} f(x)

Right-Continuous Function

f(a) = \lim _ {x \rightarrow a ^ {+}} f(x)

Discontinuity

Removable Discontinuity

∃ f (a) or f(a) \neq \lim _ {x \rightarrow a} f(x)

Jump Discontinuity

\lim _ {x \rightarrow a ^ {-}} f(x) \neq \lim _ {x \rightarrow a ^ {+}} f(x)

Essential Discontinuity

Derivative Formulas

u and v are functions of x.

a, e and k are constants (real numbers)

                                         

                                         

                                           

                                   

                             

                       

                               

                             

                       

                     

                       

                                   

                                   

                                 

                                       

                                   

                                   

                                     

                                   

                                   

                                   

                             

                             

                             

                           

                         

                           

                                   

Chain Rule

Derivative of an Implicit Function

Integrals Formulas

               

Integration by Parts

Integration by Substitution

Change of Variables

                                                   

                                                   

                                                   

                         

If is even

Change                   

sin x                         

cos x                         

tan x                               t

dx                             

If is not even:

Change                     

sen x                           

cos x                           

tgx                               

dx                                 

Definite Integral

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Emma

Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.