Question
Compute the value of $\left(2\right.$ cis $\left.20^{\circ}\right)\left(3\right.$ cis $\left.25^{\circ}\right)$ and write the answer in rectangular form. (All numbers must be exact.)
Step 1
The expression \((2 \text{ cis } 20^\circ)(3 \text{ cis } 25^\circ)\) represents two complex numbers in polar form: \[ z_1 = 2 \text{ cis } 20^\circ \] \[ z_2 = 3 \text{ cis } 25^\circ \] Show more…
Show all steps
Your feedback will help us improve your experience
Suman Saurav Thakur and 79 other educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Write each complex number in rectangular form. 2 cis $30^{\circ}$
Applications of Trigonometry
Trigonometric (Polar) Form of Complex Numbers; Products and Quotients
Write each complex number in rectangular form. $$\sqrt{2} \text { cis } 225^{\circ}$$
Write each complex number in rectangular form. $$ \sqrt{2} \text { cis } 225^{\circ} $$
Complex Numbers, Polar Equations, and Parametric Equations
Trigonometric (Polar) Form of Complex Numbers
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD