Compute the following using a calculator: cos(11π/9). Round your answer to two decimal places.
Added by Vicenta P.
Step 1
To convert from radians to degrees, we use the formula: degrees = radians * (180/π). So, degrees = (11π/9) * (180/π) = (11 * 180) / 9 = 1980 / 9 = 220. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Jeff Harris and 81 other Precalculus 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
Compute the following using a calculator: cos(10π/9). Round your answer to two decimal places.
Jeff H.
$$\text {Find the exact value.}$$ $$\cos \frac{11 \pi}{12}$$
Trigonometric Identities and Equations
Addition and Subtraction Identities
Use a calculator to find the value of each function. Round answers to four decimal places. $$\cos (7 \pi / 12)$$
The Trigonometric Functions
The sine and cosine Functions
Recommended Textbooks
Precalculus with Limits
Precalculus
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD