Вычислить: 1) √42, √175 √45, √20 2) √363; √432

1) √42 = √(6 × 7) ≈ 6.48

√175 = √(25 × 7) = 5√7 ≈ 5 × 2.65 = 13.25

√45 = √(9 × 5) = 3√5 ≈ 3 × 2.24 = 6.72

√20 = √(4 × 5) = 2√5 ≈ 2 × 2.24 = 4.48

2) √363 = √(121 × 3) = 11√3 ≈ 11 × 1.73 = 19.03

√432 = √(144 × 3) = 12√3 ≈ 12 × 1.73 = 20.76