Question

please help me with this question​

Answer 1

Answer:

hey sorry i dont know vuz i am in 6 std

Answer 2

Answer:

${ \frac{1}{81} }^{ - \frac{3}{4} } \\ = {3}^{ - 4 \times \frac{ - 3}{4} } = {3}^{3} = 27$