1.

Find x^-3 if x = (100)^1-4 + (100)^0

Answer»

Given, X=(100)^1−4  ÷(100)^0

USE a^m÷a^n

=(a)^m−n  and (a^m)^n=(a) ^mn

⇒x=(100)^−3÷(100)^0

⇒x=(100)^−3−0

⇒x=(100)^−3

Now use, (a^m)^n=(a)^mn

x^−3=[(100)^−3]^−3=(100)^9

 


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