Example: To find the square root of 100, you would take 10*10. That will give you the number, 100.
This is something best left to a calculator.One way to do it manually is to try out different numbers; say you want the square root of 2, then, for example:
* 1 squared is 1, which is less than 2
* 2 squared is 4, which is more than 2
Therefore, the actual square root is somewhere between 1 and 2. You can repeat this with decimals, for example 1.5 squared is 2.25 - this is too much, so now the square root is between 1 and 1.5.
More efficient methods exist as well, but all of them are iterative, meaning you need to iterate (repeat) a series of steps several times, until you get the desired accuracy.
One way to estimate the square root of a number is by iteration. This entails making a guess at the answer and then improving on it. Repeating the procedure should lead to a better estimate at each stage. One such is the Newton-Raphson method.
If you want to find the square root of kkk, define f(x) = x^2 – kkk. Then finding the square root of kkk is equivalent to solving f(x) = 0.
Let f’(x) = 2x. This is the derivative of f(x) but you do not need to know that to use the N-R method.
Start with x0 as the first guess. Then let xn+1 = xn - f(xn)/f’(xn) for n = 0, 1, 2, … Provided you made a reasonable choice for the starting point, the iteration will very quickly converge to the true answer. It works even if your first guess is not so good:
Suppose you want the square root of 7 and you you start with x0 = 5 (a pretty poor choice since 5^2 is 25, which is nowhere near 7).
Even so, x3 = 2.2362512515, which is less than 0.01% from the true value. Finally, remember that the negative value is also a square root.
The product of two numbers of the same number is the square root of that number as for example 5 times 5 = 25 and so its square root is 5.
Or else use a calulator.
people i am stuck in the square roots. Can you help by giving me the steps.
2i
i dont no
For school you will need to learn how to find square and cube roots in order to have the needed prerequisites to answer progressively harder and more complex problems.
Use a calculator (if you need) to find the principal square root. The second square root is the negative of the number.
The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07
.06 and .06
yaa but im tryna find out why
Find the square root of 23. The second one is the same number with a negative sign.
As for example the square root of 16 is 4 because 4*4 = 16
There is no simple way to find square roots in your head. You may be able to do it for a small number of perfect squares but that is about it.
Using a calculator is one way and it is 28