Exercitiul 3, va rog!
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Salut.
[tex]xeR\\arcsin(x)+arcsin(\frac{1}{2} )=\frac{\pi }{3}\\arcsin(x)+\frac{\pi }{6}=\frac{\pi }{3} \\arcsin(x)=\frac{\pi }{3}-\frac{\pi }{6}=\frac{2\pi-\pi }{6}=\frac{\pi }{6} \\x=sin(\frac{\pi }{6})=\frac{1}{2}[/tex]