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
Nimfa-mama [501]
3 years ago
12

Find all solutions in the interval [0, 2π) sin2x + sin x = 0

Mathematics
1 answer:
Molodets [167]3 years ago
3 0
Sin 2 x + sin x = 0
( sin 2 x = 2 sin x cos x )
2 sin x cos x + sin x  = 0
sin x ( 2 cos x + 1 ) = 0
sin x = 0 
x 1 = 0
x 2 = π 
or: 2 cos x + 1 = 0
2 cos x = - 1
cos x = -1/2
x 3 = 2π/3
x 4 = 4π/3
You might be interested in
Pour chaque affirmation dit si elles sont vraies ou fausses
noname [10]

Answer:

For each statement say if they are true or false

Step-by-step explanation:

That's the answer if you wanted to know what it meant.

Hope that helps

8 0
3 years ago
Calculate the product 78.93 times 32.45
Alona [7]

Answer:

2561.2785

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The total number of eggs in k cartons where each carton contains n eggs. Write this as an expression.
Liula [17]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

It makes more sense if you think about it in numerical terms.

Say if there were 10 eggs per carton and there were 5 cartons, what would you do to find the total?

You would multiply them

It is the same in this case

The expression would be n x k

It can be written as just nk though

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

4 0
3 years ago
Read 2 more answers
Which algebraic expression is a polynomial?
lisov135 [29]
7mn++ is the polynomial.
4 0
3 years ago
Read 2 more answers
NEED HELP ASAP!!!
svet-max [94.6K]

Answer:

The answer is 44!

Step-by-step explanation:

npp, yw!!! hahaha thank me later okay??

love that more me ahaha! np btw ofc!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Does x=3/y show direct variation ​
    10·1 answer
  • The number of bacteria in a sample after x days is represented using the equation b= 50,000(1.05)^-x. By what approximate percen
    10·2 answers
  • 4. The sum of two numbers is 36. Twice the first
    14·1 answer
  • Which one is the answer
    6·2 answers
  • Please help i’m finding this hard
    8·1 answer
  • A 50 foot rope weighing a total of 32 lbs extended over a cliff that is 35 feet to the ground. A large 8 pound bucket with 19 ga
    14·1 answer
  • Valerie bought a coat at a winter half-price sale. A sales tax of $6.24 was added to the sale price, bringing the cost of the co
    10·1 answer
  • F(x)=x^4+5x^3+10x^2+20x+24
    15·1 answer
  • C. How many sides does a regular n-gon have if one exterior angle is 12°
    12·2 answers
  • Can someone post a free 100 points thing pls ty​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!