Question

(64) ^-2/3×(1/4) ^-3​

Answer 1

$\rm{Answer : 4}$

$\sf \pink{(64)} \frac{ - 2}{3} \times ({ \frac{1}{4} }^{ - 3} ) = ( {4}^{3}) ^{ - \frac{2}{3} } \times \\ ( {4}^{ - 1} )^{ - 3} \\ = {4}^{ - 2} \times {4}^{3 } \\ = {4}^{ - 2 + 3} \\ = {4}^{1}$