What is the domain of f(x)=tan(x)+cot(x) ?

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

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domain of f(x)=tan(x)+cot(x)

domain

f (x) = tan (x) + cot (x)

πn < 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

tan (x) + cot (x)

and compare to zero:

x = \frac{π}{2} + πn, x = πn

Periodicity of

tan (x) + cot (x) : π

Combine period:

πn \leq x < π + πn

and undefined points.

The domain is

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

f (x) = 2000 x - 10000

\frac{x + \frac{1}{x} + 1}{x + \frac{1}{x} + 2}

x - 7 + 5

2 x^{2} - 4 x - 1

- \frac{y ^{2} + 27}{6}

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