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- Thread starter ISX
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Any number to a negative power is equal to the number to the power under 1. Ex. 10^-x = 1/10^x

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Mentallic

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If 10

If you use the rule that [tex]\left(a^b\right)^c=a^{bc}[/tex] then you can get a lot of these rules. For example, [tex]\left(10^{0.5}\right)^2=10^{0.5\cdot 2}=10^1=10[/tex] So that means [tex]10^{0.5}[/tex] is whatever number that when you multiply it by itself (square it) you get 10. This is the square root of 10.

You can use a similar idea to find out what negative exponents do. Use the fact that [tex]a^b\cdot a^c=a^{b+c}[/tex].

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