Answer:
Step-by-step explanation:
Call 
Now, 
This is the inverse of the given function.
You can cross - verify it by substituting a point, say, 
We see that the point satisfies both the equations.
X is a variable, a variable you have to divide to cancel out
There exists a trigonometric identity which states that,
sin (A - B) = sin A cos B - cos A sin B
This is very similar to the given expression with A equal to 57° and B equal to 13°. The simplified form of the angle is,
sin (57° - 13°) = sin 44°
<span>Yes it is true that a continuous function that is never zero on an interval never changes sign on that interval. This is because of ever important Intermediate Value Theorem.</span>
Step-by-step explanation:
The answer is 62/15.
I can't explain it bc I'm taking a test rn but still-
