Question

Пожалуйста Срочно! только номера:256,259,274,275

47181f5ccaf8bf51e13667b204f00906.docx

Answer 1

#256

1) √(3⁶)=3³=27

2) √(2⁸)=2⁴=16

3) √(5⁴)=5²=25

4) √(11⁴)=11²=121

5) √(-3⁴)=(-3)²=9

6) √(-5)⁶=(-5)³=-125

7) √(-1,8)²=1,8

8) √(2,73²)=2,73

#259

√(2)×√(32)=√(64)=±8

√(10)×√(90)=√(900)=±30

√(3)×√(7)×√(21)=√(21)×√(21)=±21

√(2)×√(22)×√(11)=±22

$\sqrt{ \frac{1}{2} } \times \sqrt{ \frac{2}{3} } \times \sqrt{ 3} = \sqrt{ \frac{1}{2} \times \frac{2}{3} \times 3 } = ±1$

$\sqrt{ \frac{2}{5} } \times \sqrt{ \frac{5}{7} } \times \sqrt{ \frac{7}{8} } = \sqrt{ \frac{2}{5} \times \frac{5}{7} \times \frac{7}{8} } = \sqrt{ \frac{1}{4} } = ± \frac{1}{2}$

#274

√(9/100)=± 3/10

√(100/49)= ± 10/7

√(3 1/16)=√(49/16)= ± 7/4

√(5 4/9)=√(49/9)= ± 7/3

√(2 14/25)=√(64/25)= ± 8/5

#275

$\sqrt{ \frac{4}{9} } + \sqrt{ \frac{1}{9} } = \frac{2}{3} + \frac{1}{3} = 1$

$5 \sqrt{ \frac{1}{25} } - 3 \sqrt{ \frac{1}{9} } = 1 - 1 = 0$

$\sqrt{ \frac{25}{64} } + \sqrt{ \frac{49}{144} } = \frac{5}{8} + \frac{7}{12} = \frac{29}{24}$