Question

1Uśun niewymiernosci z mianowników ulamków:

a)

b)

c)

Answer 1

a) 1/(√5-2) =(√5+2) /(√5-2)(√5+2)= (√5+2)/(5-4)=√5+2

b)√2/(9-2√2)= √2(9+2√2) /(9+2√2)(9-2√2)=(9√2+4) /(81-8)=(9√2+4)/73

c)√3/(2√3-1)=(√3(2√3+1)/ (2√3+1)(2√3-1)= (6+√3)/(12-1) =(6+√3)/11