1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fudgin [204]
3 years ago
10

Find all solutions of cos x -sqrt = 0.

Mathematics
1 answer:
valina [46]3 years ago
6 0

Answer:

Option A

Step-by-step explanation:

Good question!

We assume that x lies on the interval 0<=x<=360. We can therefore identify the solution in degrees:

\cos \left(x\right)-\sqrt{1-3\cos ^2\left(x\right)}=0,\:0\le \:x\le \:360^{\circ \:}

Now we can solve by substitution, and when simplified we get cos(x) = 1/2.

Take the inverse: x = cos^-1(1/2) = π/3 <--- angle in first quadrant

                             x = (2π-π/3) = 5π/3 <----- angle in fourth quadrant

As you know π/3 in degrees is 60, and 5π/3 = 360-60 = 300

Therefore your solution is the first option, x = 60+n360 and x = 300 + n360

You might be interested in
What’s the commutative property of addition ?
spin [16.1K]

Answer:

Its when you just swthc your thingy

Step-by-step explanation:

2+4=6

turns into

4+2=6

6 0
3 years ago
Read 2 more answers
Which of the following statements is NOT true?
faltersainse [42]

Answer:

A?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the mean, median, and mode of 12, 9, 17, 15, 10
igor_vitrenko [27]

Answer:

Mean: 12.6

Median: 12

Mode: 9, 10, 12, 15, 17

Step-by-step explanation:

Mean: To find the mean you have to add up all your terms and divide your result by the number of terms you have. ((12+9+17+15+10) / 5)

Median: To find the median you have to organize your terms from least to greatest and then find your center term. (12)

Mode: Normally to find your mode would be to organize your terms from least to greatest and see which of your terms occurs the most. In this case all terms occur only once, making all your terms the mode.

7 0
3 years ago
Emmet went blueberry picking along a 3-mile walking path. He picked blueberries steadily along the walk. When he was finished, h
ehidna [41]

Answer:

16 2/3 ounces

Step-by-step explanation:

Emmet collected 50 ounces of strawberries along a 3 mile walk, he collected 50/3 = 16 2/3 ounces of strawberries each mile

5 0
3 years ago
dominic is buying candy by the pound. for every 10 candy he buys,he pays 12 dollars.how much does 1 pound of candy cost?
avanturin [10]
Your answer to this question that you have asked is three dollars =. 3$

$3.00
4 0
3 years ago
Other questions:
  • The sum of 6 consecutive odd numbers is 204. What is the fourth number in this sequence?
    14·2 answers
  • Write the expanded form of 5,203
    12·1 answer
  • Help me on number problem 2 please !!!!!!!!
    15·1 answer
  • Write an equation in point-slope form (2,7);m=4
    6·1 answer
  • Given the following angles, what is the common side of
    8·1 answer
  • I don't know how to do something​
    11·1 answer
  • Help
    6·1 answer
  • Bryan paid $40.41 for 4.5 pounds of chicken. What was the price by pound? Show your work.
    11·1 answer
  • The shapes of the horizontal cross-sections of the cone below are not all
    10·1 answer
  • 2. Carly needed to study for of an hour for 9 days. How many hours did she study?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!