Question

1) (3^3)^5×3^2:3^12=?

Answer 1

$( { {3}^{3} })^{5} \times \frac{ {3}^{2} }{ {3}^{12} }$
${3}^{3 \times 5} \times {3}^{2 - 12} = {3}^{15} \times {3}^{ - 10} = {3}^{5}$