Answer:
A: 3:5
B: Yes because 3 plus two is five
Answer: 4.2 meters
Step-by-step explanation: 24×20=480
480÷100=4.8
there are 100 centimeters in a meter
Let's take the first derivative:

Notice that we can write this as:

By taking the derivative of both sides
times, we get:

This means that each time you take a derivative, a factor of
will appear. So we conclude that:

Taking
and
, we get:

So we finally get:

Answer:
I'm pretty sure it's C. 1/6
Important formula we will use.
First formula
2 cos α sin β = sin (α + β) - sin (α - β)
Second formula
∫ sin x dx = - cos x + c
We should change the trigonometry expression from multiplication into addition. Use the first formula above∫ 8 sin (2x) cos (3x) dx
= ∫ 4 ( 2 sin (2x) cos (3x) dx)
= 4 ∫ 2 cos (3x) sin (2x) dx
= 4 ∫ sin (3x + 2x) - sin (3x - 2x) dx
= 4 ∫ sin 5x - sin x dx
After changing into addition, solve the integration. Use the second formula.= 4 ∫ sin 5x - sin x dx


This is the answer.