Jasamara2010 Jasamara2010
  • 24-01-2017
  • Mathematics
contestada

Write the expression as either the sine, cosine, or tangent of a single angle.
cos(π/3)cos(π/5) + sin(π/3)sin(π/5)

Respuesta :

LammettHash
LammettHash LammettHash
  • 24-01-2017
[tex]\cos\dfrac\pi3\cos\dfrac\pi5+\sin\dfrac\pi3\sin\dfrac\pi5=\cos\left(\dfrac\pi3-\dfrac\pi5\right)=\cos\dfrac{2\pi}{15}[/tex]
Answer Link

Otras preguntas

Find the slope and y-intercept of the line that is perpendicular to y= -1/3 x+5 and passes through the point (-3,-7)
This is part of a population selected to predict information about the population as a whole.
Hillarie is creating a webpage about the Amazon River. Which information would be most useful for her to add next to the image? (A) The Amazon River is about
Help me work this out. There are plenty more of these problems and i don’t know how to do it, please help me.
What is the domain of the following function?
Need help with this
Ashley is on the swim team. Each week she swims a total of 2000 meters. How many kilometers does she swim each week?
Ok help me please me
A circle has a circumference of 907.46907.46 units. What is the diameter of the circle?
There is a force which resist change in motion called ______