1) √0,0001 = √ 10⁻⁴ = 10⁻² = 0,01
3) -√(-27)·(-3) = -√81 = -9
√0,0001=√(1/10000)=√1/√10000=1/100=0,01
-√(-27)*(-3)=-√(9*3*3)=-√9*√(3*3)=-3*3=-9.
