Question

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10 to the power -8 multiply by 10 is equal to 10 to the power -7
How?
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Answer 1

Answer:

Step-by-step explanation:

We have to use laws of indices. According to the laws of indices, if the base is same, then their powers are added as shown below. And we know that 10 has a power 1 raised to it so upon simple subtraction we get the following result.

Here,

$10^{-8} *10 = 10^{-8}*10^{1} =10^{-8+1}=10^{-7}$