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A root can be expressed as a reciprocal of an exponent. Check out these examples.
The n root of x is equal to x raised to the 1 over n power. That's what reciprocal means.
If we have 100 to the ½ power, that's the same thing as saying the square root of 100 or 10.
Similarly, 8 to the 1 over 3 power is the same thing as the cube root of 8, which is 2.
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jayerb 3 years ago
Short, sweet and to direct to the point... Good stuff
jblakeslee 3 years ago