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
ira [324]
3 years ago
10

Use trigonometric identities to solve each equation within the given domain.

Mathematics
1 answer:
choli [55]3 years ago
4 0
<h3>4cos ^4(x) -5cos^2(x)+1=0</h3><h3>(u^-1) (4u^-1)=0</h3><h3>(u^-1)=0</h3><h3>u^=1</h3><h3>u=√1</h3><h3>u=1</h3><h3>u=±1</h3><h3>cos (x)=±1</h3><h3>x=0 or π</h3><h3 /><h3>4u^-1=0</h3><h3>4u^=1</h3><h3>u^=1/4</h3><h3>u=√1/4</h3><h3>u=1/2</h3><h3>u= ±1/2</h3><h3>cos (x)=±1/2</h3><h3>x= π/3 or 4π/3</h3><h3 /><h3>x= 0, π/3, π, 4π/3</h3>
You might be interested in
What is the slope of a line that is parallel to the line y = 3/4x + 2?
Alchen [17]

Answer:

E

Step-by-step explanation:

1+2+2+1

8 0
2 years ago
The legs of a right triangle measure 5 inches and 7 inches if the theta is the the angle between the 5 inch leg and hypotenuse,
Mrac [35]

9514 1404 393

Answer:

  cos(θ) = (5√74)/74

Step-by-step explanation:

The length of the hypotenuse is given by the Pythagorean theorem:

  h = √(5² +7²) = √74

The cosine of the angle is the ratio of the adjacent leg to the hypotenuse:

  cos(θ) = 5/√74 = (5√74)/74

8 0
3 years ago
Test for origin symmetry:<br> y=x/(x^2+1)
Korolek [52]

y=\dfrac{x}{x^2+1}\\\\ -y=-\dfrac{-x}{(-x)^2+1}\\ -y=\dfrac{x}{x^2+1}\\ y=-\dfrac{x}{x^2+1}


-\dfrac{x}{x^2+1}\not =\dfrac{x}{x^2+1} so it's not symmetrical about the origin.

6 0
3 years ago
0.125 into a decimal
egoroff_w [7]
It’s already a decimal
6 0
3 years ago
What is 2/3+x=-5/2-5/6
yuradex [85]
First get common denominators 2/3+x=-15/6-5/6
second simplify 2/3+x=-20/6
third get x alone x=-20/6-4/6
fourth simplify and reduce x=-24/6 x=-4
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the tangent of angle P?<br> 12/13<br> 5/13<br> 12/5<br> 5/12
    8·1 answer
  • You start at the origin on the coordinate plane. you go 4 units to the left and 5 units up. what are the coordinates of your loc
    12·1 answer
  • If a chairlift at a ski resort holds 4 people, how many chairs are necessary to carry a group of 25 people to the top of the mou
    7·1 answer
  • 4 63/99 in simplest form
    12·1 answer
  • A gas tank has a leak. Each hour it loses 3 gallons of gas. Write the equation that represents how much gas, g , the tank loses
    5·1 answer
  • Can someone please help. i suck at math
    8·1 answer
  • The lowest temperature on May 15 is 2323 as warm as the warmest temperature on May 15. The lowest temperature on May 15 is 60ºF.
    15·1 answer
  • An arithmetic progression is a sequence of numbers in which the distance (or difference) between any two successive numbers if t
    10·2 answers
  • Find the value of x <br>a. 31<br>b. 46<br>c. 52<br>d. 107​
    13·1 answer
  • √11 irrational number
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!