Use the conversion formulas to convert from polar coordinates to rectangular coordinates.

Substitute in the known values of and into the formulas.

The exact value of is .

Factor out of .

Cancel the common factor.

Rewrite the expression.

The exact value of is .

Factor out of .

Cancel the common factor.

Rewrite the expression.

The rectangular representation of the polar point is .

Convert to Rectangular Coordinates (4,pi/4)