What is the domain of f(x)=sqrt(x-1)+2sqrt(x+1) ?

The domain of f(x)=sqrt(x-1)+2sqrt(x+1) is x>= 1

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domain of f(x)=sqrt(x-1)+2sqrt(x+1)

domain

f (x) = x - 1 + 2 x + 1

x \geq 1

Interval Notation

[1, \infty)

Solution steps

Find non-negative values for radicals:

x \geq 1

The function domain

x \geq 1

- 5 x - 1

\frac{1}{x} - 49

f (x) = 4 + \frac{5}{1 + x - 3}

f (x) = arcsin (3 x - 4 x^{3})

f (x) = \frac{1}{3 x + 1}

What is the domain of f(x)=sqrt(x-1)+2sqrt(x+1) ?
The domain of f(x)=sqrt(x-1)+2sqrt(x+1) is x>= 1