Doar câteva cu rezolvarea completă.
Dau coronițăăăă

13.
f)√6:1/√6=√6×√6=6
g)(1/√3)×(√3/-1)=-1
h)(4√2-5√3)/(4√2-5√3)=1
I)3:2√2=3/2√2=3√2/(2×2)=3√2/4
14
a)2³×2^4=2^(3+4)=2^7
b) (-√2)^3×(-√2)=(-√2)^(3+1)=(√2)^4
c)[1/(1,5)^3]×1,5)^2=(1,5)^-1
d) 4³×8^(-2)=2²ˣ³×2⁻⁶=2⁶⁻⁶=2⁰=1