Divide the Complex Numbers Below and Leave the Result in Trigonometric

question 15

Multiple Choice

Divide the complex numbers below and leave the result in trigonometric form. $\frac { 10 \left( \cos 220 ^ { \circ } + i \sin 220 ^ { \circ } \right) } { 7 \left( \cos 210 ^ { \circ } + i \sin 210 ^ { \circ } \right) }$

• A) \(70 \left( \cos 10 ^ { \circ } + i \sin 10 ^ { \circ } \right)\)
• B)​ \(\frac { 10 } { 7 } \left( \cos 10 ^ { \circ } + i \sin 70 ^ { \circ } \right)\)
• C)​ \(\frac { 10 } { 7 } \left( \cos 70 ^ { \circ } + i \sin 70 ^ { \circ } \right)\)
• D)​ \(\frac { 10 } { 7 } \left( \cos 10 ^ { \circ } + i \sin 10 ^ { \circ } \right)\)
• E)​ \(70 \left( \cos 70 ^ { \circ } + i \sin 70 ^ { \circ } \right)\)

---

Definitions:

Beck's Cognitive Therapy

A form of psychotherapy developed by Aaron Beck that aims to correct negative thinking patterns to improve mood and behavior.

Wolpe's Systematic Desensitization

A behavioral therapy technique developed by Joseph Wolpe designed to help people overcome phobias and anxiety through gradual exposure to feared stimuli while practicing relaxation techniques.

Freud's Psychoanalysis

A therapeutic approach developed by Sigmund Freud that emphasizes exploring unconscious conflicts and desires as a way of understanding and treating psychological disorders.

Cognitive

Relating to mental processes such as perception, memory, thought, and problem-solving.