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You change the sign of the exponent. For example, the reciprocal of 2 to the power 8 is 2 to the power -8. Alternately, you can change the whole expression to the denominator. In this case, the reciprocal of 2 to the power 8 is 1 divided by (2 to the power 8).

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Q: How do you find a reciprocal of a number with an exponent?
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Related questions

Which exponent gives the square of the reciprocal of a number?

The relevant exponent is -2.


What do you have to do to evaluate a negative exponent?

Find the reciprocal of the positive exponent. Thus, x-a = 1/xa


What does it mean when an exponent is a negative number?

A negative exponent is the reciprocal of the corresponding positive exponent. 102 = 100 10-2 = 1/100


What is 3 with -2 exponent?

5


What are the rules for a number with a negative exponent?

A number with a negative exponent should be treated as the reciprocal of that same number with the analogous positive exponent. For example, 42 = 16, but 4-2 = 1/42 = 1/16.


The reciprocal of a number plus the reciprocal of twice the number equalsone half Find the number?

The reciprocal of a number plus the reciprocal of twice the number equals Find the number. 1/2 find the number


What is the reciprocal of a negative exponent when the exponent is a fraction?

The reciprocal of a^(-x/y) is 1/a^(x/y). The fact that the exponent is a fraction makes no difference.


How do you solve negative integral exponents?

A negative exponent is simply the reciprocal of the positive exponent. So simply remove the negative sign and find the reciprocal. Thus, for example, 5-3 = 1/53 = 1/125


When a base of an exponential expression is apositive real number and exponent is an integer?

Then, if the exponent is a positive integer, the value is 1 multiplied by the base repeatedly, exponent times. If the exponent is a negative integer then it is the reciprocal of the above value.In either case, it is NOT the base multiplied by itself an exponent number of times.


How do you find the reciprocal of a whole number and a fraction?

Number x Reciprocal = 1 Therefore Reciprocal = 1/Number


How do you find the reciprocal?

The reciprocal of a number is what the original number is multiplied by to get 1. To find this you can simply divide 1 by the number you want the reciprocal for or, if the number is in fraction form, switch the denominator and numerator.


What do Negative exponents indicate?

Raising a number to a negative exponent gives you the reciprocal of the same number raised to the corresponding positive exponent. For example, 32 = 9, so 3-2 = 1/9