Question

Please solve both questions

Answer 1

If
${y}^{b} = z$
then
$y = \sqrt[b]{z}$
according to question
${x}^{a} = y$
we can also write the above equation az
${ {z}^{c} }^{a} = \sqrt[b]{z}$
then
${ { {z}^{c} }^{a} }^{b} = z$
so by matching powers of z we get abc=1