How should the negative power of a number be calculated? For example, three to the second power, five to the first power, and a fraction

How should the negative power of a number be calculated? For example, three to the second power, five to the first power, and a fraction

2Th power of 3=1st power of 3 5=1st power of 5

-2Th power of 3=1st power of 3 and -1st power of 5=1st power of 5

Root - a of the third power - a of the second power root - a minus one a

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