# Tag Archives: complex numbers

## Multiplicative Inverse

If , then in the form of , what does equal? Source: NCTM Mathematics Teacher, September 2006 Solution By definition of multiplication inverse Answer:

Posted in Problem solving
Tagged complex numbers, grade 8, multiplicative inverse, NCTM Mathematics Teacher
Leave a comment

## Thirteen Power of (1+i)

If represents the imaginary unit, find real values for and such that . Source: NCTM Mathematics Teacher, October 2006 Solution Answer: Alternative solution Write the complex number in polar form Applying De Moivre’s theorem

Posted in Problem solving
Tagged complex numbers, De Moivre's theorem, grade 8, NCTM Mathematics Teacher, polar form, power, trigonometry
Leave a comment