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That is the way it is defined; in theory, it could be defined any other way. But the definition commonly used makes several rules maintain their validity, for example, the law about adding exponents - even when the exponent is negative.

Consider this sequence:

103 = 1000

102 = 100

101 = 10

100 = 1

10-1 = 1/10

10-2 = 1/100

Every time the exponent is reduced by one, the result gets reduced by a factor of 10. So, it seems logical to continue this pattern for a zero or negative exponent. Mind you, this is no proof - after all, the negative exponents is a matter of definitions, not of proof. The above only merely shows that the definition is reasonable.

That is the way it is defined; in theory, it could be defined any other way. But the definition commonly used makes several rules maintain their validity, for example, the law about adding exponents - even when the exponent is negative.

Consider this sequence:

103 = 1000

102 = 100

101 = 10

100 = 1

10-1 = 1/10

10-2 = 1/100

Every time the exponent is reduced by one, the result gets reduced by a factor of 10. So, it seems logical to continue this pattern for a zero or negative exponent. Mind you, this is no proof - after all, the negative exponents is a matter of definitions, not of proof. The above only merely shows that the definition is reasonable.

That is the way it is defined; in theory, it could be defined any other way. But the definition commonly used makes several rules maintain their validity, for example, the law about adding exponents - even when the exponent is negative.

Consider this sequence:

103 = 1000

102 = 100

101 = 10

100 = 1

10-1 = 1/10

10-2 = 1/100

Every time the exponent is reduced by one, the result gets reduced by a factor of 10. So, it seems logical to continue this pattern for a zero or negative exponent. Mind you, this is no proof - after all, the negative exponents is a matter of definitions, not of proof. The above only merely shows that the definition is reasonable.

That is the way it is defined; in theory, it could be defined any other way. But the definition commonly used makes several rules maintain their validity, for example, the law about adding exponents - even when the exponent is negative.

Consider this sequence:

103 = 1000

102 = 100

101 = 10

100 = 1

10-1 = 1/10

10-2 = 1/100

Every time the exponent is reduced by one, the result gets reduced by a factor of 10. So, it seems logical to continue this pattern for a zero or negative exponent. Mind you, this is no proof - after all, the negative exponents is a matter of definitions, not of proof. The above only merely shows that the definition is reasonable.

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14y ago
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Wiki User

14y ago

That is the way it is defined; in theory, it could be defined any other way. But the definition commonly used makes several rules maintain their validity, for example, the law about adding exponents - even when the exponent is negative.

Consider this sequence:

103 = 1000

102 = 100

101 = 10

100 = 1

10-1 = 1/10

10-2 = 1/100

Every time the exponent is reduced by one, the result gets reduced by a factor of 10. So, it seems logical to continue this pattern for a zero or negative exponent. Mind you, this is no proof - after all, the negative exponents is a matter of definitions, not of proof. The above only merely shows that the definition is reasonable.

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Q: Why is any number raised to a negative power is what it is?
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Is a negative to a negative power positive?

No, or more accurately "not necessarily".A negative to any even power is positive. -2, -4, -6 etc. are even, so a negative number raised to any of those powers will be positive.However, a negative number raised to an odd negative power (-1, -3, -5 etc.) will be negative.


What is negative 1 to the power of twenty?

-120= 1 because 1.) any negative number raised to an even power will result in a positive numberand 2.) 1 raised to any power is 1.


Is a negative number raised to an odd power always negative?

Yes. Any multiplication involving an odd number of negative operands will be negative (assuming non-zero operands).


Log -3 equals?

There is no answer - it is an error: negative numbers do not have logarithms. The log if a number tells to what power the (positive) base must be raised to get the number. Raising any positive number to any power will never result in a negative number, so it is an error to try and take the log of a negative number.


What pattern do you discover when solving even-numbered exponents with negative bases?

Any number, positive or negative, raised to an even-numbered power, returns a positive number.


What is 1 to power of 10?

' 1 ' raised to any power = 1 .The power can be a whole number, a fraction, a decimal,positive, or negative, rational or irrational.


Why is any number raised to a even power positive?

A positive number times a positive number is always positive. A negative number times a negative number is always positive. Therefore, any square number will be positive. Any number to the fourth power (a square times a square) will always be positive. And so on.


What does 10 to the negative 73 power equal?

Any number x raised to a negative power -y is equivalent to the reciprocal of x raised to y. So, 10-73 would be the fraction 1 over the number 1 with 73 zeroes after it. A very small number indeed!


What is any number raised to the power of 1?

Any number raised to the power of 1 is the number itself. Example, 250 to the power of 1 is 250.


What is more than 25?

-- The sum of 25 and any positive number. -- The difference of 25 and any negative number. -- The product of 25 and any positive number greater than '1'. -- The ratio of 25 to any positive number less than '1'. -- 25 raised to any positive power greater than '1'. -- 25 raised to any negative power less than '1'. -- The factorial of any number greater than 5.


What does a number raised to the power of 1 equal?

Any number raised to the power of 1 is equal to itself.


What does a number raised to the power of 0 equal?

Any number raised to the power 0 equals 1.