Sign In
Ask Question
Mathematics
Beckham Jennings
18 June, 00:13
What is cos (7π5) ?
0.61
-0.61
0.31
-0.31
+1
Answers (
1
)
Antoine Brock
18 June, 02:22
0
-0.31.
Step-by-step explanation:
Cos (7π/5) is in the third quarter so the cosine is negative.
Cos 7π/5) = - cos (7π/5 - π)
= - cos 2π/5)
= - 0.31.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“What is cos (7π5) ? 0.61 -0.61 0.31 -0.31 ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Given the general form equation x^2 + y^2 - 6x + 4y - 12 = 0 what is the equation in standard form
Answers (1)
Hiking at a constant rate, Fred covers 20 miles in 4 hours. How far can he hike in 10 hours?
Answers (1)
Express the following number as the product of powers of their prime numbers: 24,64,192,175
Answers (1)
Sheila bought burgers and fries for her children and some friends. the burgers cost $2.05 each and the fries are $.85 each. she bought a total of 14 items, fir a total cost if $19.10. how many of each did she buy?
Answers (1)
What is n=3 times 45
Answers (2)
New Questions in Mathematics
What is the percentage of 0.5
Answers (2)
981,657 rounded to nearest ten thousand
Answers (1)
A nutrition label states that there are 36 grams of carbohydrates in each serving. this account for 12% of daily value. how many grams of carbohydrates are recommended per day?
Answers (1)
The cosine of the complimentary angle to 58° a. 0.74 c. 0.83 b. 0.85 d. 0.94
Answers (2)
What is the volume of the rectangular pyramid shown below? 9 in. 8 in. 7 in.
Answers (1)
Home
»
Mathematics
» What is cos (7π5) ? 0.61 -0.61 0.31 -0.31
Sign In
Sign Up
Forgot Password?