Question
Asked Apr 29, 2019

write the domain in interval notation

f(x) = ln(x2 + 7)
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f(x) = ln(x2 + 7)

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Step 1

Given:

 The given function is f(x) = ln (x2 +7).

Step 2

Calculation:

In general, the domain of a ln function f(x) = ln (y) exist for all y>0.

From the given function, y = x2 + 7.

Thus, the domain of the given function exist for x2 + 7>0.

That is for x2  = -7.

Since x is in terms of square, x2&nb...

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