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
padilas [110]
3 years ago
6

2sinxcosx=sinx in the interval of [0,2pi]

Mathematics
1 answer:
Trava [24]3 years ago
5 0
Use the double angle function sin2x = 2sinxcosx.

2sinxcosx + sinx = 0

For the first part of the problem, consider the solutions on the interval where sinx = 0

x = 0, pi

Now consider the solutions where sinx does NOT equal zero.

2sinxcosx + sinx = 0

2sinxcosx = - sinx

2cosx = - 1

cosx = - 1/2

x = 2pi/3, 4pi/3
You might be interested in
Need the answers for 4-8
Fed [463]

Answer:

hope this helps you out ask me if you need more help

6 0
3 years ago
Algebra 2 questions
Law Incorporation [45]

Answer:

0

Step-by-step explanation:

Cancel out x-y to x^2-Y^2 and you get x+y-x-y which is 0

8 0
3 years ago
Grace has a 15 inch diameter bicycle tire. How many revolutions will it make traveling 500 feet?
Brums [2.3K]

Answer:

Revolution = 127.24 revolutions

Step-by-step explanation:

<em><u>Circumference of the tire = πD</u></em>

Where D = 15 inch

So,

C = 15π = 47.1 inch

<u><em>In feets:</em></u>

47.1 inch = 3.93 feet.

So, <u>one revolution = 3.93 feet</u>

<u><em>Travelling 500 feet will make the following revolutions:</em></u>

Revolution = 500 feet/3.93 feet

Revolution = 127.24 revolutions

5 0
2 years ago
The product of a number and ten is twelve more than the product of the number and five-eighths.
ra1l [238]
Let the unknown number be x.

Given,

10 * x = 12 +  \frac{5}{8}  * x

10x = 12 +  \frac{5x}{8}

10x -  \frac{5x}{8} = 12

\frac{(10x*8)-5x}{8} = 12

80x-5x =12*8

75x = 96

x = \frac{96}{75} = 1.28

Hence, the number is 1.28
3 0
3 years ago
Water lilies are often used to decorate ponds, as shown in the photo. But they are also famous for their unusual growth pattern!
Alex17521 [72]
There really isn't a right or wrong answer since this is a prediction but to solve this look at the graph and try to see the pattern
5 0
2 years ago
Read 2 more answers
Other questions:
  • The radius of a sphere is increasing at a rate of 3 mm/s. how fast is the volume increasing when the diameter is 100 mm?
    10·1 answer
  • I need the answer please ??
    11·1 answer
  • There are 20 murders per hundred thousand people give the answer to the nearest 10th
    14·1 answer
  • In two or more complete sentences, compare the number of x-intercepts in the graph of f(t) = t2 to the number of x-intercepts in
    7·2 answers
  • PLEASE HELP ME PLEASE MAX POINTS
    14·1 answer
  • 1. Sand falling from a chute forms a conical pile whose altitude is always equal to 4/3 the radius of the base. (a) How fast is
    15·1 answer
  • Which could be the first step in simplifying this expression? Check all that apply.
    15·1 answer
  • What common denominator can you use to add these mixed numbers? -8 3/8 + 6 1/4
    11·2 answers
  • 50 points i neeeeeed help
    13·1 answer
  • Why is this hard. I'm not a genius. but genius can only solve this problem.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!