21 September 2015

Get Tricks about Square Root Of any Numbers which are not a perfect square with Kachhua....!!!M

Square Root = Sq. Root of Nearest Perfect Square + {difference of the given number from the nearest perfect square / 2 x (Sq. Root of Nearest Perfect Square)}
Example 1 : Square Root of 57.
= 8 + (57-64) / 2 x 8 (since the perfect square closest to 57 is 64; we will take square root of 64 i.e. 8 for calculations)
= 8 – 7/2×8
=8 – 7/16
= 7.56 (approx).
The exact answer is 7.5498
Example 2 : Square Root of 440

= 20 + (410-400) / 2 x 20 (since the perfect square closest to 440 is 441; we will take square root of 441 i.e. 21 for calculations)
= 20+10/40
= 20.25 (approx).
The exact answer is 20.248

Like this get more short tricks of maths and score in the competitive exam with kachhua.com...
Kachhua.com can help you to prepare well in competitive exam by providing online material , video lectures and regular online tests(provided with Auto result and Daily solution)...

Labels: , , , , , , ,

0 Comments:

Post a Comment

Subscribe to Post Comments [Atom]

<< Home