
De Moiré’s theorem and find the indicated power.

Answer to Problem 35RE
The indicated power of
Explanation of Solution
Given:
Concept Used:
De Moiré’s theorem that state for any
Calculations:
First convert the complex number in the polar form the equation is,
Now compare real and imaginary parts,
Now squaring and adding real and imaginary parts now find the value of
Angle can be found by dividing imaginary by real part of the complex number and quadrant can be found using sign of real
So, the given complex number is
Now by comparing the
Now calculate the value of
Now finding the value of
Now after conversion to polar form,
Now by applying the de moivres formula theorem,
Upon simplifying,
Conclusion:
Hence, the indicated power of
Chapter 8 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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