Simplify and express the result in power notation with positive exponent:
a) (3^-7÷3^-10)× 3^-5,
please give the answer with step by step explanation.
b) (3^-1×9-1)÷ 3^-2,
please give the answer with step by step explanation.
pls help me and I will mark you as brainliest and also will give you full stars
Share
Answer:
I hope it will help u ❤️dear