To write:
Answer to Problem 43RE
The mentioned complex number in the standard form is
Explanation of Solution
Given information:
The mentioned complex number is
Formula used:
By the use of De Moivre’s theorem we know that if
Also the trigonometric formula
Calculation:
Consider the mentioned complex number is
Recall the De Moivre’s theorem that if
Therefore the mentioned complex number is
Here
Therefore by De Moivre’s theorem we have,
Recall the trigonometric formula
Thus the required Complex number
Chapter 9 Solutions
Precalculus
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