Math, asked by antilaplachang, 5 months ago

simplify : (3^-7 ÷ 3^-10) × 3-5

Answers

Answered by bson

1

Step-by-step explanation:

a^-b =1/a^b

a^m/a^n = a^ (m-n)

a^m × a^n = a^(m+n)

3^(-7-(-10) +(-5)) = 3^(-7+10-5) =3^(-2) = 1/3² =1/9

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