<u>Answer:</u>

<u>Solution:</u>
Given: x=30
To solve: 
On substituting the value of x,

On dividing 30 and 5 we get,

So, the option is 15.
Step-by-step explanation:
the answer is 14
3/7 • 2 1/14
=14
Answer:
z=re ^iθ =2e ^i 3/π
Step-by-step explanation:
hope this helps

Divide both side by
and rearrange terms to get a linear ODE;

Multiply both sides by
:

The left side can be condensed as the derivative of a product:

Integrate both sides, then solve for
:
