Which of the following valued of x is not in the domain of f(x) = x+3 / x-7
1 answer:
Answer:
x = 7 is not there in the domain of the function.
Step-by-step explanation:
The given function is f(x) =
We have to find out which all values are not there in the domain of the function.For the function to become not defined the function should have infinite value and this happens when the denominator becomes zero.
In the given function for the denominator to become zero , the value of x must be 7.
For all other values of x , the function is defined.
Hence , the domain of x is all real numbers except 7.
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The wording of this question is a bit confusing... You can't write a sequence in sigma notation, but rather a series or sum. I think the question is asking you to write the sum of the sequence,
which would be
in sigma notation.
To do this, notice that the denominator in each term is a power of 2, starting with and ending with
. So in sigma notation, this series is