A Universal Rule Raising 9 to the 2nd power gives you 81. Now you have to get the "1st root" of 81. But the 1st root of any number is the number itself, so the answer remains 81. Now look at the expression 9^1/2. ... So all you have to do is get the square root of 9, which is 3.Apr 25, 2017
What does the power of 1/2 mean?
Fractional exponents Taking a number to the power of 12 undoes taking a number to the power of 2 (or squaring it). In other words, taking a number to the power of 12 is the same thing as taking a square root: x1/2=√x.
What does 9 to the power of 2 mean?
81
What does to the power of 1/2 mean?
In other words, taking a number to the power of 12 is the same thing as taking a square root: x1/2=√x. Since (xn)1/n=x1=x, we can generalize the result so that taking a number to the power of 1/n is the same thing as taking the nth root: x1/n=n√x.
What is a number to the one half power?
Fractional exponents In other words, taking a number to the power of 12 is the same thing as taking a square root: x1/2=√x. Since (xn)1/n=x1=x, we can generalize the result so that taking a number to the power of 1/n is the same thing as taking the nth root: x1/n=n√x.
What is the value of 2 to the power 1 by 2?
1.4142
What is 9 to the power of half?
https://www.youtube.com/watch?v=PFHCPxAM2vE
What does a negative 1/2 power mean?
A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side. For instance, "x–2" (pronounced as "ecks to the minus two") just means "x2, but underneath, as in 1 x 2 frac{1}{x^2} x21 ".
How do you find the power of a negative fraction?
A negative fractional exponent works just like an ordinary negative exponent. First, we switch the numerator and the denominator of the base number, and then we apply the positive exponent. Examples: 49 = 73 = 343.
How do you represent a number as a power of 2?
The power of two is written as 2^x and this utility finds "x". It's very useful when you need to figure out how many bits are needed to represent the given number. For example, if your number is from 0 to 7, then all possible ways that it can be represented in binary are 000, 001, 010, 011, 100, 101, 110, 111.