Help me please with this
2 answers:
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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.
In order to have the result of the above calculation in Cell E7, you need to use the formula<u>, "=E6 - E5."</u>
<h3>Features of Excel</h3>- Allows for calculations from basic math to complex finance.
- For subtraction, can simply use the minus (-) to deduct the figure in a cell from another cell.
To subtract the 250 in E6 from the selling price in E5, put an equal sign in E7 and select E5, put a minus (-) sign and then select E6. Press enter.
To extend this to other products, drag the part highlighted in the attachment across to the other products.
In conclusion, Excel can be quite helpful.
Find out more problems on Excel at brainly.com/question/25879801.
