"Dose" is a measured portion of a medicine. I am not aware of any exponents that have anything to do with measured quantities of medication!
A negative exponent is simply the reciprocal of the corresponding positive exponent.
Thus x^(-a) = (1/x)^a for non-zero x.
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We make a fraction with the whole thing in the denominator...
and make the exponent positive!
A negative exponent is the reciprocal of the corresponding positive exponent. 102 = 100 10-2 = 1/100
Polynomials cannot have negative exponent.
A negative exponent implies a reciprocal.Thus x^-a = 1/x^a or, equivalently, (1/x)^a
This is a procedure used to help people who are new to negative exponents. A negative exponent, when moved to the other side of the fraction, becomes a positive exponent and beginners are more comfortable with working with positive fractions.
When you have a number raised to a negative exponent, you move to the left rather than the right in decimal places. E.g. 103 = 1000 10-3 = 0.001 More specifically, when you have a negative exponent, you are taking the reciprocal of what the positive exponent would give. 24 = 16, but 2-4=(1/16) ■