Question

3 ^ - 2 by 3 into 3 ^ 0 - 3 ^ -1​

Answer 1

$\frac{ {3}^{ - 2} }{3} \times {3}^{0} - {3}^{ - 1} \\ = \frac{1}{27} \times 1 - \frac{1}{3} \\ = \frac{1}{27} - \frac{1}{3} \\ = \frac{1 - 9}{27} \\ = - \frac{8}{27}$