Question

5) If a = -2 and b =-1 then (a^-b) - (b^a) equals​

Answer 1

Answer:

${a}^{b} - {b}^{a}$

${( - 2)}^{ - 1} - {( - 1)}^{ - 2}$

$- \frac{1}{2} - {( - 1) }^{2}$

$- \frac{1}{2} - (1)$

$- \frac{1}{2} - 1$

$- 1 \frac{1}{2} = - \frac{3}{2}$