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).

4 0

3 years ago

Find the value of z when x=10.5, a=0.357 and b=0.226.

boyakko [2]

Where's the equation that contains "z"?

6 0

3 years ago

Please help me !!!!!

densk [106]

Step-by-step explanation:

from above figure calculate from the calculator and the right answer will be .....

7 0

3 years ago