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
Nitella [24]
3 years ago
6

Find the exact value of tan(pi/12) using the sum and difference formulas

Mathematics
2 answers:
kari74 [83]3 years ago
7 0
Π/12 is half of π/6, which is 30 degree
tan(α/2)=(1-cosα)/sinα)
plug in the values: tan(π/12)=(1-cosπ/6)/sin(π/6)=(1-√3/2)/(1/2)=2-√3
JulsSmile [24]3 years ago
4 0

Answer:

A

Step-by-step explanation:

You might be interested in
Find the equation of the line through point (-7,2) and parallel to y=2/5x-1/2
Vaselesa [24]

Answer:

y = 2/5x + 24/5

*View graph to see the lines*

Step-by-step explanation:

y = 2/5x - 1/2

Parrel lines have the same slope

y = mx + b

y = 2/5x + b

2 = 2/5(-7) + b

2 = -14/5 +b

5(2 = -14/5 +b)

10 = -14 + 5b

+14   +14

24 = 5b

/5    /5

24/5 = b

y = 2/5x + 24/5

Hope this helps!

6 0
2 years ago
Read 2 more answers
What is the LCM of 2 and 9
Mila [183]

Answer:

18

Step-by-step explanatio

5 0
3 years ago
Read 2 more answers
Suppose that a child in France pays five euros to visit the zoo. Five euros is the same as $6.80 in the U.S. In France, an adult
GarryVolchara [31]
6.8/5 = 1.36
1.36 x 8 = 10.88
This means that the cost of an adult is $10.88
3 0
3 years ago
Read 2 more answers
Given the number, two-fifths, generate its equivalent forms as a fraction, a decimal, and a percent. In addition, give a real wo
vichka [17]
The number in the three different forms is as follows.

2/5 (fraction), 0.2 (decimal), and 20% (percent).

You could use percentages for the results of a poll. For example, if you held a poll for which flavour of ice cream is your favorite. Let's say you surveyed 100 kids and 50 kids voted chocolate, 30 vanilla, and 20 strawberry. Then you could say 20% voted for strawberry. 

You could use the decimal form for money. For example, let's say you want to buy something that costs $10.20 and you only have 10 dollars. You could say that you would need 20 more cents, or $0.20.

As for the fraction, you could use this for measurements. For example, let's say you have a piece of fabric. You want to cut it up into 5 equal pieces, but only use two of those pieces. You could say that you would only use 2/5 of the fabric.

I hope I helped you out! If anything is wrong, please let me know about it! :)
6 0
4 years ago
Coach McGee uses the table to show her team’s current basketball shot average compared to previous years.
Zinaida [17]

Answer: The answer is B, 3.6 < 37/10

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 3/4 divided by 1/2
    10·2 answers
  • Help please k/2+9=30
    13·1 answer
  • I need help with #6 please help and I need the work
    7·2 answers
  • Is there more ounces in 1 ton than there are pounds
    8·2 answers
  • What are two comparisons for 225 and 300
    6·1 answer
  • What is the nth term of this number sequence 25, 20, 15, 10, 5
    13·1 answer
  • Solve for d/3-10=-2<br><br> solve this now plz
    6·1 answer
  • What is 32751 divided by 9
    10·1 answer
  • Help I need it asap questions in second pic
    10·2 answers
  • 3 (5x + 7) = 75<br><br> what is x?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!