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
bixtya [17]
2 years ago
11

Find all solutions of the equation in the interval [0, 2).

Mathematics
1 answer:
Margaret [11]2 years ago
6 0

Answer:

  x = 3π/2

Step-by-step explanation:

The given equation can be rewritten as a quadratic in sin(x), then solved by factoring.

<h3>Rewrite</h3>

Using the identity ...

  cos²x = 1 -sin²x

the equation can be rewritten as ...

  sin(x) = -(1 -sin²(x)) -1 . . . . . .substitute for cos²x

<h3>Solution</h3>

The new equation can be solved by considering it a quadratic in sin(x).

  0 = sin²(x) -sin(x) -2 . . . . . . subtract sin(x)

  (sin(x) -2)(sin(x) +1) = 0 . . . . factor quadratic

The solutions to this are ...

  sin(x) -2 = 0   ⇒   sin(x) = 2 . . . .  no solutions

  sin(x) +1 = 0   ⇒   sin(x) = -1   ⇒   x = 3π/2 (one solution)

You might be interested in
The weight of a newborn is 7.5 pounds. The baby gained one-half pound a month constantly for its first year.
iris [78.8K]
Answer is D if the function W is graphed find and interpret the slope of the function
6 0
3 years ago
How many solutions does this system have?
densk [106]

Answer:

One solution since x=0

6 0
3 years ago
A frog leaps 24 inches. The highest point in the jump is 6 inches. Assume the frog starts at (0,0). What quadratic function mode
Ivanshal [37]
The path is in the shape of a parabola, the horizontal length is 24, so the middle point is at x=12, the symmetry line is x=12, the highest point (the vertex) is at (12,6)
the equation in vertex form is y=a(x-12)²+6
next, find a by using either one of the two points, the starting point (0,0) or the end point (0,24). obviously (0,0) is easier to calculate:
0=a(0-12)² +6
a=-1/24
so the quadratic equation is y=-\frac{1}{24} (x-12)^2+6
5 0
3 years ago
A public health department charges $25.00 for a flu shot.The vaccine costs $0.78 per shot, a syringe costs $0.51, and the labor
AlladinOne [14]

The cost of a single shot is

.78 +.52 +.96 = 2.26

they charge 25 a shot

25 - 2.26 = 22.74

there is a profit of 22.74 per shot

22.74 * 167 =3797.58

They make $3797.58

5 0
4 years ago
What is the slope of a line perpendicular to the line whose equation is
seropon [69]

Answer:

1

Step-by-step explanation:

x+y=-9

y=-x-9

So slope of original line is -1.

The line perpendicular to the original line is -1/-1 = 1

5 0
3 years ago
Read 2 more answers
Other questions:
  • Bradley and Kelly are out flying kites at a park one afternoon. A model of Bradley and Kelly's kites are shown below on the coor
    13·2 answers
  • 4200 fans increased by 0.5
    8·2 answers
  • Melissa scored 120 points in each game how many points did she score in 10 games
    12·2 answers
  • What value of x makes this equation true? HELP ASAP I GOTTA TURN THIS HOMEWORK I N PLZ PLZ HELP
    14·2 answers
  • Math test!!! please help!!! pick abc or d
    7·2 answers
  • Help needed, much appreciated
    13·2 answers
  • Howdy, I need help with an algebra question, thanks! (I'll give you brainlist too)
    13·2 answers
  • Stella went shopping for a new camera. Sales tax where she lives is 6%. The price of the camera is $50. Find the total price inc
    11·2 answers
  • You are playing a game by drawing a card from a standard deck and replacing it. If the card is a face card, you win $30. If it i
    13·1 answer
  • Plsssss will mark brainliest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!