3.8
1)√6*√24=√144=12
2)√13*√52=√676=26
3)√0.5*√0.32=√0.16=0.4
4)√4.5*√50=√225=15
5)√162*√32=√5184=72
6)√1.1*√9.9=√10.89=3.3
3.9
1)√63*√28=√1764=42
2)√6:√24=√0.25=0.5
3)√7*√28=√196=14
4)√
*√
=√
=√0.36=0.6
5)√3.2*√0.2=√0.64=0.8
6)√
=√
=
3.10
1)3*√15=11.62
2)12*√215=175.95
3)0.4*√315=7.10
4)0.1*√95:5=0.19
3.11
1)√115600=340
2)√7.29-3.25=2.7-3.25=-0.55
3)√42.25-6.05=6.5-6.05=0.45
4)√0.1296+4.06=0.36+4.06=4.42