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varog repede ...daca a=-2(-4×3) si b=(5\6):(1/3) atunci a×b = ???

Răspuns :

a=24
b=5/2
a*b= 24* 5/2 = 60
[tex]a=-2*(-12)=24\\b=( \frac{5}{6} )*3= \frac{5}{2} \\a*b=24* \frac{5}{2} =12*5=60[/tex]