Vedic / Quicker / Shortcut Math ⇒ Topic : Square Root of two digit using formula

Peter
 
Formula: (a+b)^{2} = a^{2}+2ab+b^{2} i.e, (a / b)^{2}= a^{2} / 2ab / b^{2} Example 1:
( 57 )^{2}
All this do on your mind which will help in fast calculation to obtain the answer of Square and Square Root of a number. This is similar to the above Example. Example 2:
(69)^{2}
Step1: put down 1 carry 8
 
 
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