In this video the instructor explains the concepts of rational and irrational numbers. Multiplying a number by itself gives the value of its square. If you apply the square root to that squared number it returns to you the original number. This square root is also called a radical. A square root of a positive number can have two values. For example the square root of 81 is either 9 or 9; this is because when you multiply 9 with itself the square is 81 and even when you multiply 9 with itself the square is still 81. Real numbers consist of rational numbers and irrational numbers. Rational numbers are any numbers that can be written as the ratio of two integers a/b where b is not equal to zero. The rest of the real numbers are irrational numbers. This video explains the rational and irrational numbers.
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Find the formula of a given sequence

How To: Find a missing side of a triangle, similar to another

How To: Find the Percent Given Two Numbers

How To: Write a logarithm as a sum or difference of logarithms

How To: Solve equations with fractions and decimals

How To: Evaluate functions by substituting in the variable to the input given

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Calculate the area of a parallelogram

How To: Find the Radius of a Circle from Arc Length

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Solve equations with the order of operations

How To: Find the slope of a line given 2 points with fractions

How To: Find the area & perimeter of triangles & squares

How To: Determine the age of a fossil using carbon14

How To: Find the equation of a circle given: center & tangent

How To: Find the area of an oblique triangle using formulas

How To: Derive the area of a circle

How To: Calculate probability in "at least one" problems

How To: Remember "greater than" & "less than" symbols

How To: Find the formula of a given sequence

How To: Find a missing side of a triangle, similar to another

How To: Find the Percent Given Two Numbers

How To: Write a logarithm as a sum or difference of logarithms

How To: Solve equations with fractions and decimals

How To: Evaluate functions by substituting in the variable to the input given

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Calculate the area of a parallelogram

How To: Find the Radius of a Circle from Arc Length

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Solve equations with the order of operations

How To: Find the slope of a line given 2 points with fractions

How To: Find the area & perimeter of triangles & squares

How To: Determine the age of a fossil using carbon14

How To: Find the equation of a circle given: center & tangent

How To: Find the area of an oblique triangle using formulas

How To: Derive the area of a circle

How To: Calculate probability in "at least one" problems
Be the First to Comment
Share Your Thoughts