BuyFind

Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805
BuyFind

Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805

Solutions

Chapter I, Problem 2E
To determine

To evaluate: The expression (412i)(9+52i) in the form of a+bi.

Expert Solution

Answer to Problem 2E

The value of the expression (412i)(9+52i) is 84i.

Explanation of Solution

The subtraction of two complex numbers defined as, (a+bi)(c+di)=(ac)+i(bd).

Thus, the expression (412i)(9+52i) simplified as follows.

(412i)(9+52i)=(49)+i(1252)=5+i(62)=53i

Therefore, the value of the expression (412i)(9+52i) is 53i.

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