Question

Срочно!!!!!!!!!!1,2,3..................__________________

Answer 1

1
10√(1/5)=√(100*1/5)=√20
1/2√60=√(1/4*60)=√15
√20Ю√15⇒10√(1/5)Ю1/2√60
2
(5-√5)/(√10-√2)=√5(√5-1)/√2(√5-1)=√5/√2=√10/2
(и-4)/(√и-2)=(√и-2)(√и+2)/(√и-2)=√и+2
3
2/3√7=2√7/3*7=2√7/21
4/(√11+3)=4(√11-3)/(√11+3)(√11-3)=4(√11-3)/(11-9)=4(√11-3)/2=2(√11-3)