Answer:
Step-by-step explanation:
Given is a Differential equation as

To bring it to linear form we can divide the full equation by x

This is of the form
y'+p(x) *y = q(x)
p(x) = 1/x
So find

Solution is

Use the initial value as y(e) =1

So solution is

Answer:
Last Option
Step-by-step explanation:
We have a triangle and we know its three sides.
We want to find one of your anguos. Then we use the cosine theorem.

Where

Now we solve for x from the equation

None of them are correct.
3(4k+1) is the result I hope it helps you
Answer:
Step-by-step explanation:
no