Answer:
c
Step-by-step explanation:
The solution for this problem would be:
f'(x) = 1 - 1/x^2 = (x^2 - 1)/x^2
is positive where |x| > 1
hence (-inf, -1) and (1, inf) are the regions in which f' is positive and therefore f is increasing.
Therefore, the answer is (-infinity,-1] U [1,infinity).
Answer:
d
Step-by-step explanation:
ive had this exac problem before
Answer:
25
Step-by-step explanation:
The first number in the range 1 - 50 that is divisible by 2 is 2 itself. Then 4, 6, 8, ....
Here's one way to think and count:
In the table, the number on the right is <u>half</u> the number on the left. The numbers on the right are just counting numbers (natural numbers), so there are 25 even numbers between 1 and 50.