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
ch4aika [34]
2 years ago
11

Solve the equation for all values of x. Not really sure how to do this? cos x = 3*cos x - 2

Mathematics
1 answer:
I am Lyosha [343]2 years ago
5 0
\bf cos(x)=3cos(x)-2\implies 0=3cos(x)-2-cos(x)
\\\\\\
0=2cos(x)-2\implies 2=2cos(x)\implies \cfrac{2}{2}=cos(x)\implies 1=cos(x)
\\\\\\
cos^{-1}(1)=\measuredangle x\implies \measuredangle x=
\begin{cases}
0\\
2\pi 
\end{cases}
You might be interested in
What is 26.73 rounded to the nearest decimal
Goshia [24]
I think it's 26.70 if I remember what a decimal is.
5 0
2 years ago
What is the answer of 8-15=
kicyunya [14]

Answer:

-7

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A basketball player is fouled while attempting to make a basket and receives two free throws. The opposing coach believes there
vladimir1956 [14]

Answer: i cant draw A here but B is 84%

Step-by-step explanation:

30%+54%=84% (i think)

7 0
3 years ago
AP
enot [183]

Answer:

x < 1 or x > 6

Step-by-step explanation:

7 0
3 years ago
Which of the following equations represents a line that is perpendicular to y=-4x+9 and passes through the point, (4,5)?
kap26 [50]

Answer:

y = \frac{1}{4}x + 4 \\or\\4y = x + 16

Step-by-step explanation:

Given equation of line is:

y = -4x+9

Comparing it with the standard form

y = mx+b

m = -4

As we know that the product of slopes of perpendicular lines is -1

Let m1 be the slope of perpendicular line

m * m1 = -1

-4 * m1 = -1

m1 = -1/-4

m1 = 1/4

In order to find the value of b, putting the point in standard form

5 = (1/4)*4 + b

5 = 1 + b

b = 5-1

b = 4

Putting the value of b and m1 in standard form

y = \frac{1}{4}x + 4 \\or\\4y = x + 16 ..

3 0
3 years ago
Other questions:
  • Which of the following numbers has 5 in the ten thousands place A. 652,341. B. 562, 341. C. 462,541. D. 265,401
    8·2 answers
  • A telephone pole is installed so that 25 feet of the pole are above ground level. A stabilizing cable is anchored to the ground
    10·1 answer
  • Can some1 pls explain to me how to do this??! Katrina is building a deck. She cuts 3 lengths of wood from a 72-inch board. The f
    5·1 answer
  • Write the algebraic expression for the phrase <br> 10 more than t
    12·2 answers
  • Factor the following polynomial completely. -x2y2 + x4 + 9y2 - 9x2
    10·1 answer
  • Use the discriminant to find the number of real solutions of the equation 3x^2 – 5x + 4 = 0
    12·2 answers
  • 6) Mrs. Larson from Bay County Schools is in charge of buying supplies. She purchased 95
    13·1 answer
  • What is the value of r2 for the following data to three decimal places?
    6·1 answer
  • The difference between 4 and the product of 3 times b​
    6·1 answer
  • A farmer plans to build the small silo shown to store chicken feed. What is the circumference of the base of the silo if it can
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!