Ответ: №3,12:. 66, 63, 52, 2/25

№3,13: 30, 28, 1,875, 45

Объяснение: ЗАДАНИЕ 3.12

1) 3×√11×√44=3√(11×44)=3√484=3×22=66

2)√3⁴×√7²=3²×7=9×7=63

3) √(13²×2⁴)=√13²×√2⁴=13×2²=13×4=52

4) 0,2√(4/25)=0,2×2/5=2/10×2/5=1/5×2/5=2/25

ЗАДАНИЕ 3.13

1) √0,25×√75×√48=√(0,25×75×48)=√900=30

2) √2×√56×√7=√(2×56×7)=√784=28

3) √0,5×√(4цел1/2)×√(6цел1/4)=

=√0,5×√(9/2)×√(25/4)=√0,5×√4,5×5/4=

=√(0,5×4,5)×5/4=√2,25×5/4=1,5×5/4=7,5÷4=

=1,875

4) √5×√15×√27=√(5×15×27)=√2025=45