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zhuklara [117]
3 years ago
10

Find the domain for the expression

Formula1" title=" \frac{2}{\sqrt{x+3}} " alt=" \frac{2}{\sqrt{x+3}} " align="absmiddle" class="latex-formula">
please explain
Mathematics
1 answer:
sashaice [31]3 years ago
3 0

Two rules come into play here:

1) We cannot divide by zero. Thux, x cannot = -3.

2) The domain of the square root function is (0, infinity). This is the dominant limiting factor.

x + 3 must be > 0. Thus, x must be > -3

The domain of this expression is (-3, infinity).

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