Rad Radicals 2!

Observe the formula in T.V. Man's screen!


Y cannot be equal to zero(0) because division by zero is undefined. And according to that well-known exponential rule:

Note: If Y is equal to 1, then the radical sign is not necessary!

If X is negative & Y is even, then you will get an imaginary number, which will then be squared to a negative real number!

However, if X is negative but Y is odd, then you'll simply get a positive real number.

This trick works with complex numbers, too, not just real numbers alone.

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© Derek Cumberbatch