Using a calculator is one way and it is 28
Logarithms turn multiplication into addition, which is much faster. The same applies for division, except that the logs are subtracted. Using logarithms, finding roots or powers is easy. For example, the square root of a number can be found using 1/2 times the logarithm (plus one more step). Finding square roots is something that happens often in algebra. If you did not have a calculator, square roots would be hard without logarithms.
The square root of a number is the number that is squared, or multiplied by itself, to get the number. The square root of 913,936 is 956. *Click the included link to learn the traditional method (Meaning without a calculator) of finding square roots: http://www.homeschoolmath.net/teaching/square-root-algorithm.phpand look for the subtitle: Finding square roots using an algorithm
384 square feet - without using a calculator !
There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.
Using a calculator is one way and it is 28
Logarithms turn multiplication into addition, which is much faster. The same applies for division, except that the logs are subtracted. Using logarithms, finding roots or powers is easy. For example, the square root of a number can be found using 1/2 times the logarithm (plus one more step). Finding square roots is something that happens often in algebra. If you did not have a calculator, square roots would be hard without logarithms.
The square root of a number is the number that is squared, or multiplied by itself, to get the number. The square root of 913,936 is 956. *Click the included link to learn the traditional method (Meaning without a calculator) of finding square roots: http://www.homeschoolmath.net/teaching/square-root-algorithm.phpand look for the subtitle: Finding square roots using an algorithm
384 square feet - without using a calculator !
square root of 125= 25 times 5 under the radical (25 has a square root so you can take that out of the radical)= 5 times the square root of 5 (Thats your final answer with no calculator)
There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.
13.5 square metres - without using a calculator !
4800 ft2 - without using a calculator !
The SQUARE roots are -140 and +140. You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
try to find what number times the same numbers equals the number that you have.
Well, it's both: you're using a machine to compute an approximation. Why isn't it exact? Most square roots (such as the square root of two) are irrational numbers, so their decimal representation requires an infinite number of digits. We humans have to have finite answers, hence we round off.
The SQUARE roots of 22500 are -150 and +150. You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.