A line that is tangent to each of the two coplanar circles
(cos Ф -cos Ф)² + (cos Ф + cos Ф)²
Firstly: (cos Ф -cos Ф)² = 0² = 0
Secondly :(cos Ф + cos Ф)² = (2cos Ф)². = 4. (cos Ф)² = 4cos² Ф
Mind you when you raise a cosine (or sin or tan...) to the n power, the n power should affect the cosine only and NOT the angle Ф
2/3n (put that as a fraction) + 4 = 7
1
is the correct answer lol ez stuff
Answer:
653.45 cm^2
Step-by-step explanation:
The volume of a cylinder can be found using:
v=pi r^2 h
We know the radius is 4, and the height is 13, so we can substitute them in
v=pi (4^2)(13)
v=pi (16)(13)
v=pi 208
v=653.451272
Rounded to the nearest hundredth
v=653.45
So the volume is 653.45 cm^3
