Replace x with 10 and simplify the fraction.
40/10 = 4/1 = 4
The answer is 4
Answer:

Step-by-step explanation:
The given relation is

To make
the subject, we square both sides of the equation to get;


Isolate
on one side of the equation;

Or

We take the positive square root of both sides to get;

Move all the terms involving the sine to one side, and all the numbers to the other:

Answer:
10 sqrt 3.
Step-by-step explanation:
sqrt30 = sqrt10 * sqrt 3
so sqrt30 * sqrt10
= sqrt10 * sqrt10 * sqrt3
= 10 sqrt 3.