Question

Evaluate: 9 to the power 0 + 9 to the power -1 - 9 to the power -2 + 9 to the power 1/2 - 9 to the power -1/2

Answer 1

Step-by-step explanation:

9°+9^-1-9^-2+9½-9^-1/2

a°=1,a^-1=1/a,a^m/n=n√a^m

1+1/9-1/9²+9½-1/9½

1+1/9-1/81+3-1/3

4-2/3-1/81

4-2×27-1/81

4-55/81

266/81

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