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
ss7ja [257]
3 years ago
9

How do you do this?

Mathematics
1 answer:
zaharov [31]3 years ago
4 0
4sin x=2sin x + √3
4sin x-2sinx=√3
2sin x=√3
sinx=√3/2

x=arcsin √3/2=π/3  + 2Kπ U  2π/3+2Kπ

Sol: π/3  + 2Kπ   U    2π/3+2Kπ ;       K∈Z

π/3+2Kπ=60º+360ºk    
2π/3+2Kπ=120º+360ºK


You might be interested in
The point G(6,4) is rotated 180° clockwise around the origin. What
siniylev [52]

Answer:

Step-by-step explanation:

when (x,y) is rotated through 180 then new coordinates are (-x',-y')

G(6,4)→G'(-6,-4)

5 0
3 years ago
PLEASE ANSWER- Which sequence is graphed below?
boyakko [2]

Answer:

pretty sure its C, good luck

6 0
3 years ago
Find the value for β that makes cosβ = sin15 true.
Gemiola [76]

Answer:

Step-by-step explanation:

This is an equation for which you need to solve for the value of the missing angle beta.

cos\beta =sin(15)

sin(15) has a decimal answer that you will find on your calculator.  Finding that value makes this equation then

cosβ = .2588190451

Now use the 2nd button and then the cos button to find the angle that has a cos of that decimal.  When you hit 2nd then cos, you should see this on your screen:

cos⁻¹ (

After that open parenthesis, enter you decimal then hit the enter button to find the angle.  You should get 75, which is Choice B.

8 0
3 years ago
An envelope contains three cards: a black card that is black on both sides, a white card that is white on both sides, and a mixe
Over [174]

Answer:

There is a  2/3  probability that the other side is also black.

Step-by-step explanation:

Here let B1: Event of picking a card that has a black side

B2: Event of picking a card that has BOTH black side.

Now, by the CONDITIONAL PROBABILITY:

P(B_2/B_1 )  = \frac{P(B_1\cap B_2)}{P(B_1)}

Now, as EXACTLY ONE CARD has both sides BLACK in three cards.

⇒ P (B1 ∩ B2) = 1 /3

Also, Out if total 6 sides of cards, 3 are BLACK from one side.

⇒ P (B1 ) = 3 /6 = 1/2

Putting these values in the formula, we get:

P(B_2/B_1 )  = \frac{P(B_1\cap B_2)}{P(B_1)} = \frac{1}{3}  \times\frac{2}{1} = \frac{2}{3}

⇒ P (B2 / B1)  =  2/3

Hence, there is a  2/3  probability that the other side is also black.

 

5 0
3 years ago
Which angle is complementary to COD
dezoksy [38]

Answer:

90° - COD

Step-by-step explanation:

Because if it's complementary, the mystery angle and COD add up to 90°

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write an explicit formula for the following sequence. Then generate the first five terms.
    6·1 answer
  • Which unit would I use to measure the circumference of a birthday cake?
    13·1 answer
  • Fine the value of ‘A’ in the set of complementary angles. Can you please help me!!!
    9·2 answers
  • I PROMISE BRAINLIST 20 PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Suppose you are building a brick border for a garden by stacking r
    11·1 answer
  • A slice is made perpendicular to the base of a right rectangular prism as shown. What is the area of the resulting two-dimension
    12·2 answers
  • 73 10/10 simplify please I need the answer
    10·2 answers
  • Three friends each have some ribbon. Carol has 42 inches of ribbon, Tino has 2.5 feet of ribbon, and Baxter has 1.5 yards of rib
    13·1 answer
  • Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    5·1 answer
  • The teacher wanted to know what the average test grade was, so she added up all the grades and divided by the number of tests to
    11·2 answers
  • Based on the information in the table, how much will Henry earn if he worked 7 hours?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!