simplify (3 ^-7 ÷ 3^-10 ) 3^-5 and express in power notation with exponent
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Answer:
=(1÷3^-10-(-7))3^-5
=(1÷3^-10+3)3^-5
=(1÷3^-7)3^-5
=(3^7)3^-5
=3^7+(-5)
=3^7-5
=3^2
=9
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