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]
1 year ago
11

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

Mathematics
1 answer:
Margaret [11]1 year 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
Solve -4y - 3 + 3y = 8 - 2y -15, interpret the result
Elenna [48]

Answer:

y = -4

Step-by-step explanation:

-4y - 3 + 3y = 8 - 2y - 15

~Combine like terms

-y - 3 = -2y - 7

~Add 3 to both sides

-y = -2y - 4

~Add 2y to both sides

y = -4

Best of Luck!

8 0
3 years ago
Based on Max’s father estimate how many minutes will it take to build the box
aalyn [17]

Answer:

hh

Step-by-step explanation:

5 0
3 years ago
Help me please i dont understand
matrenka [14]

Answer:

22

Step-by-step explanation:

The line where it says 2cm, extend that line to the top. You know have 2 triangles, call the one on the left A and the one on the right B

area of recntangle = bh

Rect A:

b = 5

h = 4 - 2

h = 2

bh = 5 x 2

bh = 10

Rect B:

b = 3

h = 4

bh = 4 X 3

bh = 12

Total = 10 + 12

Total = 22

5 0
1 year ago
What is the value of x in the equation <br> -5/8x=-160?
Helen [10]

Answer:

x= 1/256

Step-by-step explanation:

1. multiply both sides by 8x (answer: -5= 8x*-160)

2. divide both sides by -160 (answer: -5/-160 or 1/32 =8x)

3. divide both sides by 8 (answer: 1/256 = x

4. check your answer: -5/(8*1/256)= -160

5 0
3 years ago
3x - y = 6<br> What is the answer
Leno4ka [110]

Step-by-step explanation:

it will be x in terms of y or vice versa

6 0
3 years ago
Read 2 more answers
Other questions:
  • If the line passing through the points (a, 1) and (−2, 6) is parallel to the line passing through the points (−12, 9) and (a + 2
    15·1 answer
  • Does this table represent a function? Why or why not?
    11·2 answers
  • Plz help due tomorrow
    14·1 answer
  • Some friends decide to go to the aquarium together.Each person pays $7.50 to get in.They spend a total of $40 for the shark exhi
    10·1 answer
  • Rewrite 2/20 : 1/40 as a unit rate
    12·2 answers
  • which function has an inverse that is also a function? a. g(x) = 2x-3 b. k(x) = -9x2 c. f(x) |x+2| d. w(x) = -20
    13·1 answer
  • A common characterization of obese individuals is that their body mass index is at least 30 [BMI = weight/(height)2, where heigh
    8·1 answer
  • Divide Express your answer in scientific notation<br> 10.4 x 10<br> 4 x 10<br> 10.4 x 10<br> 4x10
    15·1 answer
  • If a regular polygon has 72 sides and an order of 72,what is the polygon’s rotational angle?
    6·1 answer
  • A circle has a radius of 3.5. What is the circumference? Use 3.14 for Pi.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!