Try the Free Math Solver or Scroll down to Tutorials!

 Depdendent Variable

 Number of equations to solve: 23456789
 Equ. #1:
 Equ. #2:

 Equ. #3:

 Equ. #4:

 Equ. #5:

 Equ. #6:

 Equ. #7:

 Equ. #8:

 Equ. #9:

 Solve for:

 Dependent Variable

 Number of inequalities to solve: 23456789
 Ineq. #1:
 Ineq. #2:

 Ineq. #3:

 Ineq. #4:

 Ineq. #5:

 Ineq. #6:

 Ineq. #7:

 Ineq. #8:

 Ineq. #9:

 Solve for:

 Please use this form if you would like to have this math solver on your website, free of charge. Name: Email: Your Website: Msg:

# Radical Notation and Rational Exponents

Square Root

• Not part of a tree

A number c is the square root of a if, Careful: We only have a positive and negative root if there is an equation with an equal sign Why is 3 the square root of 9? Why is -3 the square root of 9? nth root

A number c is the nth root of a if, Prison escape method of finding roots   If n is even If n is odd  Rational Exponents The imaginary # Take the exponent on i divide by 4 the remainder is your new exponent
Taking roots with the TI-84

Square roots

Method 1 – hit [ ], enter the number, close the paren, hit [enter]
Method 2 – put in the number, hit [^], open a paren, type ½,
close the paren, hit [enter]

Remember, this works because the index on the radical
can be written as a rational (fractional) exponent
Cube roots

Method 1 – hit [ Math], , enter the number, close the paren, hit [enter]
Method 2 – put in the number, hit [^], open a paren, type 1/3
close the paren, hit [enter]
Remember, this works because the index on the radical
can be written as a rational (fractional) exponent
nth roots

Method 1 – type the index first, hit [ Math], , enter the number,
hit [enter]

Method 2 – put in the number, hit [^], open a paren, type 1/n
close the paren, hit [enter]

Remember, this works because the index on the radical
can be written as a rational (fractional) exponent