Mathematics, 06.08.2019 23:20 alma79

Find the value of $\cos\left(\dfrac{\pi}{9}\right)+\co s\left(\dfrac{3\pi}{9}\right)+\cos\ left(\dfrac{5\pi}{9}\right)+\cos\le ft(\dfrac{7\pi}{9}\right)$
show your work! : )

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:10

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Answers: 3

Answer

Mathematics, 21.06.2019 18:30

Evaluate cos2θ for cosθ = square root of 3/2

Answers: 1

Answer

Mathematics, 21.06.2019 19:30

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Answers: 2

Answer

Mathematics, 21.06.2019 21:50

Which of the following equations is equivalent to x/3-6/x=1

Answers: 3

Answer

You know the right answer?

Find the value of [tex] \cos\left(\dfrac{\pi}{9}\right)+\co s\left(\dfrac{3\pi}{9}\right)+\cos\ left...

Questions

Physics, 06.05.2020 03:00

The diagram shows a positive charge moving in a magnetic field. In which direction is the magnetic force acting on the charge?...

Mathematics, 06.05.2020 03:00

Sophia measurez out 215 inches of fabric. How many feet of fabric does she have?...

Business, 06.05.2020 03:00

The accounting records for the Fox Hollow Company show that its cost of goods sold for the year was $300,000. In addition, it had an increase in inven...

Social Studies, 06.05.2020 03:00

Fabiana is beginning to realize that so-called "surprise quizzes" in her math class really aren't too much of a surprise at all, since they tend to oc...

Business, 06.05.2020 03:00

Darrin’s employees are highly skilled, so he allows them free rein to do their jobs. However, if their performance drops below a certain standa...

History, 06.05.2020 03:00

In this passage, Monroe discusses the new countries of Latin America. What does the underlined text show about the US position toward these coun...

English, 06.05.2020 03:00

Smaller than a marble1st and 2nd choices65 million years ago an asteroid hit Earth, what do scientists thinkhappened?OFo...

Mathematics, 06.05.2020 03:00

Need help with solving both of these questions for geometry homework.

Mathematics, 06.05.2020 03:00

I am confused help me it’s due Friday...

Business, 06.05.2020 03:00

Assume a 1000 face value bond has coupon rate of 8.5 percent, pays interest semi- annually, and has an eight-year life. if investors are willing to ac...

Mathematics, 06.05.2020 03:00

What steps should be followed in order to solve the inequality statement-3t + 7 > 9...

Mathematics, 06.05.2020 03:00

Solve for the variable k^2+9k=0...

Social Studies, 06.05.2020 03:00

Can someone please help me...

Social Studies, 06.05.2020 03:00

Pete's therapist says,"Don't say you will never fall in love again, say, I will take time to know the person better next time." Which of the following...

Engineering, 06.05.2020 03:00

Suppose that a wing component on an aircraft is fabricated from an aluminum alloy that has a plane-strain fracture toughness of 26.0 MPa (23.7 ksi )....

Business, 06.05.2020 03:00

Peterson Enterprises reports the following information: Net income $5,000,000 Depreciation expense 680,000 Loss on the sale of investments 154,000 Inc...

Chemistry, 06.05.2020 03:00

Explain what happens to car tires and the air inside in each of these scenarios. a. Hot summer day: b. Cold winter day:...

SAT, 06.05.2020 03:00

Which of the following is an advantage of taking the PSAT?...

Mathematics, 06.05.2020 03:00

ACDE was translated down and right to form triangle AC'D'E'....

Business, 06.05.2020 03:00

Suppose home owners owe $7 trillion in mortgage loans. Instructions: Enter your responses as a whole number. In part b, do not include a negative sign...

More questions: Mathematics Another questions

Find the value of show your work! : )

Answers

Another question on Mathematics

Find the value of $\cos\left(\dfrac{\pi}{9}\right)+\co s\left(\dfrac{3\pi}{9}\right)+\cos\ left(\dfrac{5\pi}{9}\right)+\cos\le ft(\dfrac{7\pi}{9}\right)$
show your work! : )