Arcsin 1/2 +arctg 0 + arccos ( 1/2)

[latex]\arcsin \frac{1}{2} +\arctan 0 + \arccos \frac{1}{2} = \frac{\pi}{6}+0+\frac{ \pi }{3} = \frac{ \pi}{2} [/latex] Ответ: [latex] \frac{ \pi}{2} [/latex]