Question

rezultatul calculylui | 4√3-7 | +4√3​

Answer 1

Răspuns:

|4√3-7|=-4√3+7 pt ca 4√3<7

-4√3+7+4√3=7

Answer 2

$\it 4\sqrt3=\sqrt{4^2\cdot3}=\sqrt{16\cdot3}=\sqrt{48}<\sqrt{49}=7 \Rightarrow 4\sqrt3<7 \Rightarrow \\ \\ \Rightarrow4\sqrt3-7<0 \Rightarrow |4\sqrt3-7|=-4\sqrt3+7\\ \\ Prin\ urmare:\\ \\ |4\sqrt3-7|+4\sqrt3=-4\sqrt3+7+4\sqrt3=7$