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
Zepler [3.9K]
2 years ago
15

PLEASE HELP ME GIVING 30 POINTS!!!

Mathematics
1 answer:
kramer2 years ago
5 0

Using trigonometric identities, it is found that the sine and the tangent of the angle are given as follows:

  • \sin{\theta} = \frac{1}{2}.
  • \tan{\theta} = -\frac{\sqrt{3}}{3}

<h3>How do we find the sine of an angle given the cosine?</h3>

We use the following identity:

\sin^{2}{\theta} + \cos^{2}{\theta} = 1

In this problem, the cosine is:

\cos{\theta} = -\frac{\sqrt{3}}{2}

Hence the sine is found as follows:

\sin^{2}{\theta} + \left(-\frac{\sqrt{3}}{2}\right)^2 = 1

\sin^{2}{\theta} + \frac{3}{4} = 1

\sin^{2}{\theta} = \frac{1}{4}

\sin{\theta} = \pm \sqrt{\frac{1}{4}}

Second quadrant, so the sine is positive, hence:

\sin{\theta} = \frac{1}{2}

<h3>What is the tangent of an angle?</h3>

The tangent is given by the <u>sine divided by the cosine</u>, hence:

\tan{\theta} = \frac{\sin{\theta}}{\cos{\theta}}

Hence:

\tan{\theta} = \frac{\frac{1}{2}}{-\frac{\sqrt{3}}{2}}

\tan{\theta} = -\frac{1}{\sqrt{3}} \times \frac{\sqrt{3}}{\sqrt{3}}

\tan{\theta} = -\frac{\sqrt{3}}{3}

More can be learned about trigonometric identities at brainly.com/question/7331447

#SPJ1

You might be interested in
Becca borrowed $220 from her cousin at the rate of 5.25% per year. If the inflation rate was 1.5% that year what is her cousins
padilas [110]

Answer:

namakjsjksksksks

Step-by-step explanation:

nsnwkwkkwgz5dhbwhe6w7

6 0
3 years ago
21 students went on an exchange program to hong kong. There were 11 more women than men. How many woman are there?
daser333 [38]

Answer:

11

Step-by-step explanation:

11 + 10 = 21

8 0
3 years ago
Help please :) thanksss
Ahat [919]

Answer:

I agree with your answer

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please hurry algebra 2
Lelu [443]

Answer:

the answer should be the second option idk for sure sorry if wrong.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
-1 + 14x = 12x + 17 Whats the answer ? what is x
Finger [1]

Answer:

x= 9

Step-by-step explanation:

Move the terms -> -1=14x = -12x + 16

Find out the sum -> 2x=17+1

Divide both by the equation by two -> 2x=18 x=9

Final answer: x=9

8 0
3 years ago
Other questions:
  • What is one third of 3/4 teaspoon
    8·1 answer
  • Probability out of 125 babies 60 will be boys
    13·2 answers
  • Please help me to show my work
    14·1 answer
  • If f=(9/5 x c ) +32 85c =__f
    10·2 answers
  • What is 5/24 simplified in lower terms
    11·2 answers
  • Endpoint (-6,0) and Midpoint (2,3)
    14·1 answer
  • Find US, find MN, find YZ
    6·1 answer
  • – 1/4 × 2/5 + – 4/5 + – 3/4
    13·2 answers
  • Yes plz help w homework xp​
    14·2 answers
  • What is the square root of -3-4i??
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!