# Integrals Cheat Sheet

• Algebra
• Number Rules
• Expand Rules
• Fractions Rules
• Absolute Rules
• Exponent Rules
• Factor Rules
• Factorial Rules
• Log Rules
• Undefined
• Complex Number Rules
• Trigonometry
• Basic Identities
• Pythagorean Identities
• Double Angle Identities
• Sum Difference Identities
• Product To Sum Identities
• Triple Angle Identities
• Function Ranges
• Function Values
• Limits
• Limit Properties
• Limit to Infinity Properties
• Indeterminate Forms
• Common Limits
• Limit Rules
• Derivatives
• Derivatives Rules
• Common Derivatives
• Trigonometric Derivatives
• Arc Trigonometric Derivatives
• Hyperbolic Derivatives
• Arc Hyperbolic Derivatives
• Integrals
• Common Integrals
• Trigonometric Integrals
• Arc Trigonometric Integrals
• Hyperbolic Integrals
• Integrals of Special Functions
• Indefinite Integrals Rules
• Definite Integrals Rules

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## Common Integrals

 \int x^{-1}dx=\ln(x) \int \frac{1}{x} dx=\ln(x) \int |x|dx=\frac{x\sqrt{{x}^2}}{2} \int e^{x}dx=e^{x} \int \sin(x)dx=-\cos(x) \int \cos(x)dx=\sin(x)

## Trigonometric Integrals

 \int \sec^2(x) dx=\tan(x) \int \csc^2(x) dx =-\cot(x) \int \frac{1}{\sin^2(x)}dx=-\cot(x) \int \frac{1}{\cos^2(x)}dx=\tan(x)

## Arc Trigonometric Integrals

 \int \frac{1}{{x}^2+1}dx=\arctan(x) \int \frac{-1}{{x}^2+1}dx=\arccot(x) \int \frac{1}{\sqrt{1-{x}^2}}dx=\arcsin(x) \int \frac{-1}{\sqrt{1-{x}^2}}dx=\arccos(x) \int \frac{1}{|x|\sqrt{{x}^2-1}} dx = \arcsec(x) \int \frac{-1}{|x|\sqrt{{x}^2-1}} dx = \arccsc(x) \int \frac{1}{\sqrt{{x}^2+1}} dx = \arcsinh(x) \int \frac{1}{1-{x}^2} dx = \arctanh(x) \int \frac{1}{|x|\sqrt{{x}^2+1}} dx = -\arccsch(x)

## Hyperbolic Integrals

 \int \sech^2(x) dx = \tanh(x) \int \csch^2(x) dx = (-\coth(x)) \int \cosh(x) dx = \sinh(x) \int \sinh(x) dx = \cosh(x) \int \csch(x) dx = \ln(\tanh(\frac{x}{2})) \int \sec(x) dx = \ln(\tan(x)+\sec(x))

## Integrals of Special Functions

 \int \cos(\frac{{x}^2\pi}{2})dx = \C(x) \int \frac{\sin (x)}{x}dx = \Si(x) \int \frac{\cos (x)}{x}dx = \Ci(x) \int \frac{\sinh (x)}{x}dx = \Shi(x) \int \frac{\cosh (x)}{x}dx = \Chi(x) \int \frac{\exp (x)}{x}dx = \Ei(x) \int \exp{-{x}^2}dx = \frac{\sqrt{\pi}}{2}\erf(x) \int \exp{{x}^2}dx = \exp{{x}^2}\F(x) \int \sin(\frac{{x}^2\pi}{2})dx = \S(x) \int \sin({x}^2)dx = \sqrt{\frac{\pi}{2}}\S(\sqrt{\frac{2}{\pi}}x) \int \frac{1}{\ln(x)}dx=\li(x)

## Indefinite Integrals Rules

 Integration By Parts \int \:uv'=uv-\int \:u'v \int x^2\ln\left(x\right) Integral of a constant \int f\left(a\right)dx=x\cdot f\left(a\right) \int 2dx Take the constant out \int a\cdot f\left(x\right)dx=a\cdot \int f\left(x\right)dx \int 2xdx Sum Rule \int f\left(x\right)\pm g\left(x\right)dx=\int f\left(x\right)dx\pm \int g\left(x\right)dx \int x^2+2xdx Add a constant to the solution \mathrm{If} \frac{dF(x)}{dx}=f(x) \mathrm{then} \int{f(x)}dx=F(x)+C \int \:\:2dx Power Rule \int x^adx=\frac{x^{a+1}}{a+1},\:\quad \:a\ne -1 $\int \:x^3dx$ Integral Substitution \int f\left(g\left(x\right)\right)\cdot g^'\left(x\right)dx=\int f\left(u\right)du,\:\quad u=g\left(x\right) \int \cos\left(2x\right)dx

## Definite Integrals Rules

 Definite Integral Boundaries \int _a^bf\left(x\right)dx=F\left(b\right)-F\left(a\right) =\lim _{x\to \:b-}\left(F\left(x\right)\right)-\lim _{x\to \:a+}\left(F\left(x\right)\right) \int _3^5\frac{4x}{2-8x^2} Odd function \mathrm{If }f\left(x\right)=-f\left(-x\right)\Rightarrow\int _{-a}^af\left(x\right)dx=0 \int _{-10}^{10}xe^{-x^8}dx Undefined points \mathrm{If\:exist\:b,\:a\lt b\lt c,\:and}\:f\left(b\right)=\mathrm{undefined}, \mathrm{Then}\:\int _a^c\:f\left(x\right)dx=\int _a^b\:f\left(x\right)dx+\int _b^c\:f\left(x\right)dx \int _{-1}^1\frac{1}{x^3} Same points defined \int _a^a\:f\left(x\right)dx=0 \int _3^3x^2

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