What is the domain of f(x)=sqrt(4x^2-9) ?

The domain of f(x)=sqrt(4x^2-9) is x = 3/2

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domain of f(x)=sqrt(4x^2-9)

domain

f (x) = 4 x^{2} - 9

x \leq - \frac{3}{2} or x \geq \frac{3}{2}

Interval Notation

(- \infty, - \frac{3}{2}] \cup [\frac{3}{2}, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - \frac{3}{2} or x \geq \frac{3}{2}

The function domain

x \leq - \frac{3}{2} or x \geq \frac{3}{2}

What is the domain of f(x)=sqrt(4x^2-9) ?
The domain of f(x)=sqrt(4x^2-9) is x<=-3/2 \lor x>= 3/2