Question

Q.4 The value of
$\sqrt[3 ]{ - 27} \times \sqrt[3]{343} \:$
is -
a)21
b)-21
c)19
d)-19​

Answer 1

$\huge \sf\sqrt[3]{ - 27 \: } = - 3 \\ \\ \\ \huge \sf\sqrt[3]{343} = 7$

so ,

$\huge \mathrm{( - 3 )\times (7 )= - 21}$