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

The domain of y=3tan(x) is pin<= x< pi/2+pin\lor pi/2+pin<x<pi+pin

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domain of y=3tan(x)

domain

y = 3 tan (x)

πn \leq x < \frac{π}{2} + πn or \frac{π}{2} + πn < x < π + πn

Interval Notation

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

Solution steps

Take the denominator(s) of

3 tan (x)

and compare to zero:

x = \frac{π}{2} + πn

Periodicity of

3 tan (x) : π

Combine period:

πn \leq x < π + πn

and undefined points.

The domain is

πn \leq x < \frac{π}{2} + πn or \frac{π}{2} + πn < x < π + πn

y = \frac{x ^{2} + x - 38}{x ^{2} - 25}

\frac{x ^{2} + 6 x + 5}{x ^{2} - 25}

h (x) = ln (x + 3)

\frac{x}{x + 6}

y = \frac{2 x ^{2} + 6 x + 4}{- 3 x - 5}

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