Limit Laws are the properties of limit. They are used to calculate the limit of a function.

• Constant Law
  
  The limit of a constant is the constant itself.
  
       

• Sum law (Law of addition )
  
  The limit of a sum is the sum of the limits.
  
       

• Difference Law (Law of subtraction)
  
  The limit of a difference is the difference of the limits.
  
       
  
• Constant Multiple Law
  
  The limit of a constant times a function is the constant times the limit of the function.
  
       
  
• Product Law (Law of multiplication)
  
  The limit of a product is the product of the limits.
  
       

• Quotient Law (Law of division)
  
  The limit of a quotient is the quotient of the limits (provided that the limit of the denominator is not 0).
  
       

  if

       

• Special limit
  
  The limit of x is a when x approaches a.

       

• Power law
  
  The limit of the power of a function is the power of the limit of the function.

       
  
  if n is a positive integer.

• Power special limit
  
  The limit of x power is a power when x approaches a.
  
       
  
  if n is positive.
  
• Root special limit
  
       
  
  where n is a positive integer. If n is positive, then it is assumed that a > 0.
  
• Root law
  
       
  
  where n is positive integer. It is assumed that
  
       
  
  if n is even.