Question

8 - Obtenha aproximações de rales
com ate 2 casas decimais de:
a)
$\sqrt{7}$
B)
$\sqrt{11}$
C)
$\sqrt{13}$
D)
$\sqrt{47}$
​

Answer 1

a)

√4<√7<√9

2<√7<3

2,6²=6,76

2,61²=6,81

2,62²=6,86

2,63²=6,91

2,64²=6,96

Logo √7≅2,64.

b)

√9<√11<√16

3<√11<4

3,31²=10,95

√11≅3,31

c) √9<√13<√16

3<√13<4

3,60²=12,96

√13≅3,60

d) √36<√47<√49

6<√47<7

6,85²=46,92

√47≅6,85