Question

calculati:
$a)\sqrt{3 {}^{2} }$
$b) \sqrt{10 {}^{2} }$
$c) \sqrt{15 {}^{2} }$
$e) \sqrt{139 {}^{2} }$
$f) \sqrt{2 {}^{2} } \times {3}^{2}$
$g) \sqrt{4 {}^{2} } \times 7 {}^{2}$
​

Answer 1

$\sqrt{ {3 }^{2} } = \sqrt{9 } = 3$

$\sqrt{10 {}^{2} } = \sqrt{100} = 10$

$\sqrt{15 {}^{2} } = \sqrt{225} = 15$

$\sqrt{139} {}^{2} = \sqrt{19321} = 139$

scuze nu stiu la f si g