c) 2n√2=2*2^1/n
lim2*2^1/n=2lim2^1/n=2*2^(1/∞)=2*2^0=2*1=2
amnalog arati ca radical de ordin n din 3→1
lim an=2+1=3
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d)lim a n =lim(√3+√4)/(2+√5)=lim(√3+√4)/lim(2+√5)
lim(√3+√4)=lim√3+lim√4)
lim√3=lim3^1/n=3^(1/∞)=3^0=1
analog lim√4=1
analog lim√5=1
lim an=(1+1)/(2+1)=2/3
