An archeologist claimed that he found some gold coins date 46 BC. Do you think this is possible?
1 answer:
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An X-axis and Y-axis rectangular coorganizing system splits the plane in to the four regions recognised as the quadrants. The cross point is indeed the source of the two axes and is made reference to as O. So, the calculation can be defined as follows:
Given:
To find:
Find negative function values =?
Solution:
Solve value for a:
Solve value for b:
Solve value for c:
Solve value for d:
Therefore the final answer is "Option C".
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Recall that √x has a domain of x ≥ 0.
So, f(x) is defined as long as
(x + 1)/(x - 1) ≥ 0
• We have equality when x = -1
• Otherwise (x + 1)/(x - 1) is positive if both x + 1 and x - 1 are positive, or both are negative:
Then the domain of f(x) is
x > 1 or x ≤ -1
On the other hand, g(x) is defined by two individual square root expressions with respective domains of
• x + 1 ≥ 0 ⇒ x ≥ -1
• x - 1 ≥ 0 ⇒ x ≥ 1
but note that g(1) is undefined, so we omit it from the second domain.
Then g(x) is defined so long as both x ≥ -1 *and* x > 1 are satisfied, which means its domain is
x > 1
f(x) and g(x) have different domains, so they are not the same function.