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
Ksivusya [100]
3 years ago
9

How to solve cot x cos2x=2cot x

Mathematics
2 answers:
klio [65]3 years ago
8 0
Cotxcos2x = 2cotx
cos2x = 2cotx/cotx
cos2x = 2
cos2x = 2cos²x - 1
2cos²x - 1 = 2
2cos²x = 2+1
2cos²x = 3
cos²x = 3/2
√cos²x = plus minus √(3/2)
cosx = plus minus √(3/2)
Lyrx [107]3 years ago
7 0
Cot(x)cos(2x) = 2cot(x)
      cot(x)           cot(x)
         cos(2x) = 2

It is undefined.
You might be interested in
The change in the value of an account when given to the nearest dollar 1/16 inch
Feliz [49]
This would be 2 because of the rounding rules of it being 5 and up round up and below 5 round down. I hope I helped!
7 0
3 years ago
You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you
xeze [42]

Answer:

20

Step-by-step explanation:

This is a binomial distribution

n = 100; p = 1/5

E(x) = np = (100)(1/5) = 20

6 0
3 years ago
CAN ANYONE HELP ME ASAP?!? PLEASEEE! I’ll give brainliest! <br> 1-4
liraira [26]

Answer:

35 degrees

42 degrees

x = 8 degrees

x = 7 degrees

Step-by-step explanation:

1)

m <1 = 70/2 = 35 degrees

2)

m <1 = 84/2 = 42 degrees

3)

6 + 4 x = (9 x + 4) / 2

12 + 8 x = 9 x + 4

12 - 4 = x

x = 8 degrees

4)

3 x - 1 = x + 13

2 x = 14

x = 7 degrees

6 0
3 years ago
What is the answer so i can pass
Lelechka [254]

Answer:

8/100 is equivalent to 0.08

Step-by-step explanation:

The second digit place to the right of the decimal point is the hundredths place, so that is where the 8 belongs because it is 8/100 in fraction form.

Hope this helped :)

6 0
3 years ago
Which recursive sequence would produce the sequence 8,-35,137,…?
vagabundo [1.1K]

The recursive sequence that would produce the sequence 8,-35,137,… is T(n + 1) = -3 - 4T(n) where T(1) = 8

<h3>How to determine the recursive sequence that would produce the sequence?</h3>

The sequence is given as:

8,-35,137,…

From the above sequence, we can see that:

The next term is the product of the current term and -4 added to -3

i.e.

Next term = -3 + Current term * -4

So, we have:

T(n + 1) = -3 + T(n) * -4

Rewrite as:

T(n + 1) = -3 - 4T(n)

Hence, the recursive sequence that would produce the sequence 8,-35,137,… is T(n + 1) = -3 - 4T(n) where T(1) = 8

Read more about recursive sequence at

brainly.com/question/1275192

#SPJ1

4 0
2 years ago
Other questions:
  • a girl walked for 30 minutes she noticed that she traveled father in the first 15 minutes of her than in the second 15 minutes w
    9·1 answer
  • Find the simple interest paid to the nearest cent for each loan, interest rate, and time. $500, 12%, 18 months
    12·2 answers
  • 6 points
    9·1 answer
  • Easy math! 7th / 20 points
    8·2 answers
  • At the beginning of the season, MacDonald had to remove 555 orange trees from his farm. Each of the remaining trees produced 210
    13·2 answers
  • Ken went to a county fair and spent $5 on admission, $6.50 on games, and $7.21 on food. If he had $30 before he went to the fair
    5·2 answers
  • What is 36kg in the ratio of 7:2
    9·1 answer
  • Find the total area of the figure below? Round to the nearest tenth<br> PLEASE HELP ME!!!
    13·1 answer
  • 9/3 divided by 1/7<br> Someone pls help
    8·1 answer
  • Can someone pls help me
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!