Register
Evaluate sin(Arcos(-9/√145)).
14.5k views
2 votes
Evaluate sin(Arcos(-9/√145)).

Evaluate sin(Arcos(-9/√145)).-example-1
User Rgeorge
by
7.6k points

2 Answers

3 votes

Answer:

a

Explanation:

User Ygram
by
8.7k points
4 votes

Use the fact that
\sin x = √(1-\cos^2 x) to solve it.


\sin(\arccos(-(9)/(√(145))))=\sqrt{1-\cos^2(\arccos(-(9)/(√(145))))} =\\= \sqrt{1-(-(9)/(√(145)))^2}=(8)/(√(145))

User Binod Singh
by
7.9k points
← Prev Question Next Question →

Related questions

User Oli Beatson
asked Oct 13, 2020 90.4k views
Evaluate sin(Arcos(-9/√145))
Oli Beatson asked Oct 13, 2020
by Oli Beatson
8.0k points
1 answer
4 votes
90.4k views
User Wookiekim
asked Mar 12, 2024 173k views
Find the distance between the two points in simplest radical form. A) √145 B) √100 C) √26 D) √45
Wookiekim asked Mar 12, 2024
by Wookiekim
8.3k points
1 answer
0 votes
173k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!