What is the domain of f(x)=sec(x)csc(x) ?

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

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domain of f(x)=sec(x)csc(x)

domain

f (x) = sec (x) csc (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

sec (x) csc (x)

and compare to zero:

x = \frac{π}{2} + πn, x = πn

Periodicity of

sec (x) csc (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

+ \frac{x + 4}{x - 4}

ln (arccos (x))

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

7 x - 21 + \frac{x}{x - 8}

f (x) = \frac{ln ( x )}{2 x}

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