Question

Cine îmi rezolva dau coroana plzzz​

Answer 1

Răspuns:

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Explicație pas cu pas:

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Answer 2

$|-\sqrt{3} \,|-|+3\sqrt{3} \,|+|\:2\sqrt{3} +1\,|=$

$\sqrt{3} -3\sqrt{3} +2\sqrt{3} +1=$

$\implies-2\sqrt{2} +2\sqrt{2} +1=1$

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$|\:\sqrt{17} -4\:|+|\:\sqrt{17} -5\:|+|-3\:|$

$\sqrt{17} -4<0 \implies |\sqrt{17} -4\:|=\sqrt{17} -4$

$\sqrt{17} -5<0 \implies |\:\sqrt{17} -5\:|=-(\sqrt{17} -5)=-\sqrt{17} +5$

$\implies \sqrt{17} -4-\sqrt{17} +5+3= -4+5+3=4$

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$|-2\frac{1}{4} \,|+|+1\frac{3}{4} \,|-|-7\frac{1}{4} \,|=$

$2\frac{1}{4} +1\frac{3}{4} -7\frac{1}{4} =\frac{2\cdot4+1}{4} +\frac{1\cdot4+3}{4} -\frac{7\cdot4+1}{4}$

$\implies \frac{9}{4} +\frac{7}{4} -\frac{29}{4} =\frac{9+7-29}{4} =-\frac{13}{4}$

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$|\:2\sqrt{3} -3\:|+|\:\sqrt{3} -2\:|-|\:\sqrt{3} +1\:|$

$2\sqrt{3} -3 >0 \implies |\:2\sqrt{3} -3\:|=2\sqrt{3} -3$

$\sqrt{3} -2<0 \implies |\:\sqrt{3} -2\:|=-(\sqrt{3} -2)=-\sqrt{3} +2$

$\sqrt{3} +1>0 \implies |\:\sqrt{3} +1\:|=\sqrt{3} +1$

$\implies 2\sqrt{3} -3+2-\sqrt{3} -(\sqrt{3} +1)=$

$\implies 2\sqrt{3} -1-\sqrt{3} -\sqrt{3} -1=2\sqrt{3} -2-2\sqrt{3} =-2$