Answer:

Step-by-step explanation:
The given expression is

The tangent of -1 is defined, it's around -0.02.
The tangent is a trigonometric function with a period of
, where each period is separated by a vertical asymptote which indicates that the function is not determined through all its domain, that's what the question refers to when it says "if is undefined, enter undefined".
However, at
, the tangent is determined, that means, there's no asymptote on that coordinate, that's why it has a "determined value", which is -0.02 approximately.

Decimal form: 4.05, 0.5
Exact form: 9/2, 1/2
The correct answer is about two hours. Hope this helps.
Photo please? and a function means that it cant have the same number of x axis'
example,
function;
15 6
-46 37
36 -37
27 -25
not a function;
-1 3
5 7
-5 6
-1 8
It would be zero because you can’t raise 0 to any positive power.