Question

Вычислите:
1) √360*490
2) √331776
3) √45*80*0,16
4) √3,6*810

Answer 1

1)
$sqrt{360 times 490}$
=
$sqrt{36 times 100 times 49}$
=6×10×7=420
2)
$sqrt{331776}$
=
$sqrt{36 times 36 times 16 times 16}$
=36×16=576
3)
$sqrt{45 times 80 times 0.16}$
=
$sqrt{45 times 8 times 1.6}$
=
$sqrt{360 times 1.6}$
=
$sqrt{36 times 16}$
=6×4=24
4)
$sqrt{3.6 times 810}$
=
$sqrt{36 times 81}$
=6×9=54