Monday, 28 September 2015

How to tell if any number is perfect square or not at glance(in 2 seconds) | Team MAST

The video covers up the shortest trick to tell whether a given number is perfect square or not looking at  a glance, in just 2 seconds. The trick is basically an application of Digital Root or Digital Sum which I discussed in the previous video.
I recommend you to see the video covering the concept of Digital Root or Digital Sum prior to this video : https://youtu.be/K2siDNKmqt4 

I have discussed two rules which help in deciding whether a given number is perfect square or not-:
To switch on directly to the first rule(numbers ending with either 2 or 3 or 7 or 8) : https://youtu.be/hNj2Fr72as8?t=26s
To switch on directly to the second rule(numbers ending with either 0 or 1 or 4 or 5 or 6 or 9) : https://youtu.be/hNj2Fr72as8?t=1m43s
Finally don't miss to see the conclusion where I discuss in which cases the trick fails : https://youtu.be/hNj2Fr72as8?t=5m5s


After you have watched this video you are good to go for next video which discusses -: 

The shortcut trick to calculate square root of perfect square in 5 seconds : https://www.youtube.com/watch?v=AUxbITBX6eY
The shortcut trick to calculate square root of non perfect square in 5 seconds : https://youtu.be/VQQUOjw9yLI
You would also like to watch : 
Vedic maths multiplication of two digit numbers : https://www.youtube.com/watch? v=j4HeP5BOsS4
Vedic maths multiplication of three digit numbers : https://www.youtube.com/watch?v=-2HHxWf69ys
Vedic math multiplication using base method (for 2, 3, 4 digit    numbers) : https://www.youtube.com/watch?v=n-vSvmAfKpA
Vedic math multiplication for series 11…. :  https://www.youtube.com/watch?v=RdZbrtaKbek
Vedic math multiplication for series 999…..: https://www.youtube.com/watch?v=5TEzOOX423k
Cube root of a number using Vedic Math : https://www.youtube.com/watch?v=fSbU4Ji46Xw
Square root of a number in 5 seconds : https://www.youtube.com/watch?v=AUxbITBX6eY
Square of 2 and 3 digit numbers using Vedic Math : https://www.youtube.com/watch?v=0MASDIVQpXk
You can also see our whole collection of aptitude videos here : https://goo.gl/RFgzHV
If you wish to remain updated with our latest tutorials you can subscribe to our channel : https://www.youtube.com/teammast

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