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
Scrat [10]
3 years ago
14

Use a sum or difference formula to find the exact value of the following. cos Sin COS

Mathematics
1 answer:
Radda [10]3 years ago
3 0
Sin (2pi/3) = sin(2pi/6)

You might be interested in
PLS HELP ASAP IW ILL GIVE BRIANLEST IF RIGHT DO NOT ANSWER UNUSEFUL ANSWERS
Roman55 [17]

1 equals 0.46 (make a line over the 6 to show it is repeated)

2 equals 0.4 (make a line over the 4 to show it is repeated)

3 equals -0.6 (make a line over the 6 to show it is repeated)

4 equals -0.857142 (make a line over all numbers past the decimal to show it is repeated)

5 equals 3.3409 (make a line over the 09 at the end to show it is repeated)

6 equals -1.7727 (make a line over the 27 at the end to show it is repeated)

7 equals 66.5%

8 equals 3.16 (make a line over the 6 to show it is repeated)

9 equals -9 over 10

10 equals -17 over 20

11 equals -3 and 4 over 5

4 0
3 years ago
Read 2 more answers
Question Category: Solving Quadratic Equations by Factoring Select the correct answer. Find the solution(s) for x in the equatio
Novay_Z [31]

Answer: x = 4; x = 5

Step-by-step explanation:

The directions specify to solve by factoring

x^2 - 9x + 20 = 0

To factor, find two numbers that add to -9 and multiply to 20

-5 and -4 work

-5 + (-4) = -9

-5 * -4 = 20

(x - 4)(x - 5) = 0

x = 4, x =5

6 0
3 years ago
Nathaniel is using the quadratic formula to solve 0 = x2 + 5x - 6. His steps are shown below. Table showing 3 steps to solve an
shutvik [7]

Answer:

              \underline{x\in\left\{-6\,,\ 1\right\}}

Step-by-step explanation:

x^2+5x-6=0\\\\a=1\,,\ \ b=5\,,\ \ c=-6\\\\x_1=\dfrac{-5-\sqrt{5^2-4\cdot1\cdot(-6)}}{2\cdot1}=\dfrac{-5-\sqrt{25+24}}2=\dfrac{-5-\sqrt{49}}2=\dfrac{-5-7}2=-6\\\\x_2=\dfrac{-5+\sqrt{5^2-4\cdot1\cdot(-6)}}{2\cdot1}=\dfrac{-5+7}2=1

3 0
3 years ago
Help first person gets brainliest
crimeas [40]

Answer: The correct order is D.

4 0
3 years ago
7(x 4) can someone answer fast
jeka94
7(x+4)=0
7x+28=0
7x=-28
X=-28/7
X=-4
4 0
3 years ago
Other questions:
  • Solve using trigonometry. Round to the nearest degree.<br> 16<br> х<br> 30
    10·1 answer
  • Eurostar is a high-speed railway service connecting
    14·1 answer
  • How far above sea level is the ranger station?
    7·1 answer
  • The minimum and maximum temperature on a cold day in Lollypop Town can be modeled by the equation below: 2|x − 6| + 14 = 38 What
    13·2 answers
  • #18 Mikayla has 25
    13·2 answers
  • :
    5·1 answer
  • ​When CP = Rs 1250 and SP = Rs 1500, find profit or loss percent ?
    9·1 answer
  • Find the exact value of x.
    5·2 answers
  • Simplify the expression:<br> 10s+–2s
    6·2 answers
  • A car that traveled 50 miles in 2 hours had the same average speed as a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!