What is the domain of sqrt(20-x^2) ?

The domain of sqrt(20-x^2) is -2sqrt(5)<= x<= 2sqrt(5)

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domain of sqrt(20-x^2)

domain

20 - x^{2}

- 25 \leq x \leq 25

Interval Notation

[- 25, 25]

Solution steps

Find non-negative values for radicals:

- 25 \leq x \leq 25

The function domain

- 25 \leq x \leq 25

f (x) = \frac{2 x - 4}{14 x ^{2} - 3 x - 5}

f (x) = \frac{2 x - 11}{2 x - 6}

f (x) = \frac{x ^{3} - 2 x + 4}{x - 3}

3 x - 3

f (x) = \frac{1}{x ( x + 4 )}

What is the domain of sqrt(20-x^2) ?
The domain of sqrt(20-x^2) is -2sqrt(5)<= x<= 2sqrt(5)