Question

4. Rationalizează numitorul:​

Answer 1

Răspuns:

a)3/√5=3√5/5

b)7/√3=7√3/3

c)-5/3√2=-5√2/6

d)11/-3√11=-11√11/3×11=-√11/3

e)-15/2√5=-15√5/10=-3√5/2

f)-90/√6=-90√6/6=-15√6