Explicație pas cu pas:
[tex] \tan(x) = \frac{3}{4}[/tex]
[tex] {3}^{2} + {4}^{2} = {5}^{2} [/tex]
[tex] \sin(x) = \frac{3}{5} \\ \cos(x) = \frac{4}{5} [/tex]
[tex]2 \sin(x) + 5 \cos(x) = 2 \times \frac{3}{5} + 5 \times \frac{4}{5} = \frac{6 + 20}{5} = \frac{26}{5} [/tex]
