Question

$\frac{ - 2}{3} \times \sqrt{15}$
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Answer 1

Răspuns:

Salutare!

-2/3 • √15= -√(2/3)²•15= -√4/9 • 15= -√4•15/9= -√4•5/3= -√20/3= -2√3/√3= -2•√3•√3/3= -2•3/3= -6/3= -2