MAT1275FinalReviewFall2019version
This problem requires you to do arithmetic using complex numbers. It’s very much like ordinary algebra, except that you must remember that $i^{2} = -1$, and also to put your final. answer into the standard (“rectangular”) form $a + bi$.
Also remember, since $i$ is a radical (it’s $\sqrt{-1}$), we divide by rationalizing the denominator, which means we have to multiply top and bottom by the conjugate of the denominator. It is helpful to remember that $(a+bi)(a-bi)=a^{2} + b^{2}$.
Resources:
• WeBWorK on ComplexNumbers (Use “Show Me Another” if you have already completed this)
• Video showing a solution of #5d
