Question

se considera numerele reale a=V12 + V8 - V24 si b= V18 - V54 +V27
V=radical
PLS DAU COROANA

Answer 1

Răspuns:

$\sqrt{12} = \sqrt{ {2}^{2} \times 3 } = 2 \sqrt{3}$

$\sqrt{8} = \sqrt{ {2}^{3} } = 2 \sqrt{2}$

$\sqrt{24} = \sqrt{ {2}^{3} \times 3} = 2 \sqrt{6}$

$a = 2( \sqrt{2} + \sqrt{3} - \sqrt{6} )$

$\sqrt{18} = \sqrt{2 \times {3}^{2} } = 3 \sqrt{2}$

$\sqrt{54} = \sqrt{2 \times {3}^{3} } = 3 \sqrt{6}$

$\sqrt{27} = \sqrt{ {3}^{3} } = 3 \sqrt{3}$

$b = 3( \sqrt{2} + \sqrt{3} - \sqrt{6} )$