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

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

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domain of sqrt(t^2-t-20)

domain

t^{2} - t - 20

t \leq - 4 or t \geq 5

Interval Notation

(- \infty, - 4] \cup [5, \infty)

Solution steps

Find non-negative values for radicals:

t \leq - 4 or t \geq 5

The function domain

t \leq - 4 or t \geq 5

\frac{( x ^{2} + 2 x )}{6 - x ^{2}}

f (t) = (e^{t} \cdot 0.6)^{100}

f (x) = 10 x + 500, x = 150

\frac{1}{∣ x - 2 ∣ ^{2} - ∣ 6 - 3 x ∣ + \frac{5}{4}}

f (x) = ∣ x + 5 ∣ - (x + 5) 2 - 1

What is the domain of sqrt(t^2-t-20) ?
The domain of sqrt(t^2-t-20) is t<=-4\lor t>= 5