how I will find square root by shortcut as second method is tooo time gaining.. it took so much time to do .....plz tell
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Yes, it is true that second method is too time gaining.
You can solve faster by approximate estimation .
For example, for 5 you can see that it will be less than 3 but more than 2.
We also know that 25x25=625.
Which means 2.5x2.5=6.25
So it will be less than 2.5
So it will be approximately 2.2
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