What is the domain of f(x)=3tan(2x) ?

The domain of f(x)=3tan(2x) is pi/2 n<= x< pi/4+pi/2 n\lor pi/4+pi/2 n<x< pi/2+pi/2 n

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domain of f(x)=3tan(2x)

domain

f (x) = 3 tan (2 x)

\frac{π}{2} n \leq x < \frac{π}{4} + \frac{π}{2} n or \frac{π}{4} + \frac{π}{2} n < x < \frac{π}{2} + \frac{π}{2} n

Interval Notation

[\frac{π}{2} n, \frac{π}{4} + \frac{π}{2} n) \cup (\frac{π}{4} + \frac{π}{2} n, \frac{π}{2} + \frac{π}{2} n)

Solution steps

Take the denominator(s) of

3 tan (2 x)

and compare to zero:

x = \frac{π}{4} + \frac{π}{2} n

Periodicity of

3 tan (2 x) : \frac{π}{2}

Combine period:

\frac{π}{2} n \leq x < \frac{π}{2} + \frac{π}{2} n

and undefined points.

The domain is

\frac{π}{2} n \leq x < \frac{π}{4} + \frac{π}{2} n or \frac{π}{4} + \frac{π}{2} n < x < \frac{π}{2} + \frac{π}{2} n

lo g_{x - 3} (x^{2} - 4)

y = ln (6 x - 3)

f (x) = \frac{2}{x + 7}

f (x) = \frac{x + 2}{x - 5}

f (x) = ln (x^{2}) + 7

What is the domain of f(x)=3tan(2x) ?
The domain of f(x)=3tan(2x) is pi/2 n<= x< pi/4+pi/2 n\lor pi/4+pi/2 n<x< pi/2+pi/2 n