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 Depdendent Variable

 Number of equations to solve: 23456789
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 Dependent Variable

 Number of inequalities to solve: 23456789
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## Imaginary Numbers

To find a product such as begin by rewriting each square root in terms of i.

Example

Simplify:

 Solution Rewrite each square root using Simplify each square root. Multiply. Use i2 = -1. Multiply. Thus, = 3 Â· i Â· 4 Â· i = 12 Â· i2 = 12 Â· (-1) = -12

Note:

Be careful! The Multiplication Property of Square Roots, does not apply if a or b is negative.

If the radicand of a square root contains a negative number, be sure to write the square root in terms of i before you simplify.