positive number with a negative exponent

nursedj said:
how do I rewrite this number 4-2 that-2 is an exponent
Post these this way, nurse: 4^(-2)

RULE: x^(-p) = 1 / x^p

So with yours: 1 / 4^2 = 1/16 ; kapish?
 
Put more simply, when you have something raised to a negative exponent, make it "one divided by" the number but make the exponent Positive.
 
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