Qualification > Math

Easiest way to find the square root of a number

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Saladin:
Please tell me, especially astar, how to find the square root of a number without a calculator, in the easiest way possible....


There was a way but i 4got how to do it....

i think it was a challange that u put up, like who can do the sqaure root of a number in their head....

astarmathsandphysics:
I will explain when i get home.

Dreams <3:
I have a method, like when you get for example the square root of 75..
75 is 25*3.. So the root of 75 = the root of 25 * the root of 3
The root of 25 is 5 so the answer will be 5 square root of 3..
Sorry but i cant get the symbols for the roots im still new hope you understand it

master786:
tht answer u gave from ur example is surd form...
how wud u do the same for 1096 or some bigger number .

astarmathsandphysics:
square root of 65
squuare root of 64 is 8 so do 8+1/(2*8 )=8.0625
8.0625^2= 64.00390625
now do 8.0625-0.00390625/(2*8.0625)
which is about 8.0625-0.0039/(16.1)=8,06226 roughly

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