Answer:
A. is false
Step-by-step explanation:
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Answer:
divide -11 to -11 (-11/-11)
Step-by-step explanation:
The domain is the set of all point where you can evaluate the function.
As you can see, the first piece is defined from -infinity to 2 (included).
The second piece is defined from 2 to 6 (excluded).
The third piece is defined from 6 (excluded) to +infinity.
So, the domain of the function is composed by all the real numbers which are not 6:
As for the range, it is the set of all values taken by the function. We can see that the first piece spans the y axis from 0 to infinity.
The second piece is constantly equal to 2, so it adds nothing.
The third piece spans the y axis from -2 to -infinity, so the range is
It doesn't seem true, and here's a counterexample: observe that the first three terms form a perfect square. You can rewrite the equation as
This is basically the Pythagorean theorem applied to a triangle with sides n+p, q and r. For example, pick:
The expression becomes
Which is true, even if