bsneed01 bsneed01

24-04-2018
Mathematics

contestada

what is the first step to solve this equation 4cos(x)=1+2cos(x)?

what is the first step to solve this equation 4cosx12cosx class=

Respuesta :

mkryukova19 mkryukova19

24-04-2018

4cos(x)-2cos(x)=1+2cos(x)-2cos(x)
2cos(x)=1
cos(x)=1/2 (Positive cos are only in the first and 4th quadrants.)
x=π/3,
x=2π - π/3 = 5π/3

Answer Link

Otras preguntas

Answer each of the following questions using complete sentences. Remember the "5 Ws and How" (who, what, why, where, when, how). 1) How have medical, scientific

Reflect on your experience of preparing to debate about whether or not the Civil Rights Movement ended in the late 1960s. How did this affect your perspective o

Henry went on a field trip to a national park. He not only observed the aquatic life in the pond, but also the trees, vegetation, and animal’s species on land.

The area of a trapezoid is 95 square inches and its height is 10 inches. The length of one base of the trapezoid is 8 inches. What is the length of its other ba

please help will make brainlyest answer fast please

how does media influence people daily life

Hheehheeheheheeheheheppp

The formula of the iron oxide is fe2o3. calculate the maximum mass of iron that can be obtained from 240 tonnes of iron oxide, fe2o3. (relative atomic masses: o

What is the sum of the measures of ∠1, ∠2, ∠3, and ∠4?

Which of the following items are made from renewable resources? Select the two correct answers. (1 point) plastic fork plastic fork printer paper printer paper