Question

Rapsundeti va rog am nevoie de ajutor!!!trebuie sa rationalizati numitorul raportului
a) 10/3√5; b)14/9√2; c)3/2√17 ; d)6/√21;e) 2/3√14

Answer 1

a)10/3√5=(10•√5)/(3√5•√5)=10√5/(3•5)=10√5/15=2√5/3

b)14/9√2=(14•√2)/(9√2•√2)=14√2/(9•2)=14√2/18=7√2/9

c)3/2√17=(3•√17)/(2√17•√17)=3√17/(2•17)=3√17/34

d)6/√21=(6•√21)/(√21•√21)=6√21/21=3√21/7

e)2/3√14=(2•√14)/(3√14•√14)=2√14/(3•14)=2√14/42=√14/21