(A)
To find:
The trigonometric form of a
(A)
Answer to Problem 90E
The complex form is
Explanation of Solution
Given:
The form is
Concept used:
If
Calculation:
The power of a complex number
Using the formula of DeMoviver’stheorem in equation (1)
The absolute value of
The argument
The complex form is
The argument
The complex form is
(B)
To find:
The given operation using the trigonometric forms
(B)
Answer to Problem 90E
The complex number of division is
Explanation of Solution
Given:
The form is
Concept used:
Multiplication and division of Complex Number:- Let two complex numbers are
Calculation:
The trgnometric form of dividing rule
(C)
To find:
The dividationof complex numbers in the form of trigonometric
(C)
Explanation of Solution
Given:
The form is
Concept used:
Multiplication and division of Complex Number:- Let two complex numbers are
Calculation:
The complex number of division
Using the formula of division in equation (1)
Chapter 6 Solutions
Precalculus with Limits: A Graphing Approach
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