Question

Rezultatul calcului (-$\sqrt{3}$·$\sqrt{5}$ este....
Efectueaza $\frac{7}{5} \sqrt{1,44}+(1- \sqrt{ 36^{-2} }* \sqrt{7}$

Answer 1

1. (-√3*√5)=-√3*5=-√15

2. 7/5√1,44+(1-√36)^-2*√7=
=7/5*√36/25+(1-6)^-2*√7=
=7/5*6/5+(-5)^-2*√7=
=42/25+5^-2*√7=
=42/25+1/5²*√7=
=42/25+1/25*√7=
=42/25+√7/25=
=42+√7/25

Answer 2

Imi da
-¬/15 la prima
Si (42+¬/7)/25 la a2-a;