Level:
Project ID:
2010016408
Source Problem:
Accepted:
0
Clonable:
1
Easy:
1
Consider the function \(f(x)=\mathop{\mathrm{cotg}}\nolimits x\) with
domain restricted to the interval \( (0;\pi )\).
In the following list identify the function with domain
\(\left (0; \frac{\pi } {2}\right )\).
\(f(2\cdot x)\)
\(f(x+2)\)
\(f(x-2)\)
\(f(\frac{x}2)\)