Sir...you are doing a great job...I am preparing for engineering and find it the most helpful trick....I will recommend my friends to subscribe here...please make more such videos...it saves us from a lot of complex calculation....and saves time in the exam hall
Very interesting...very helpful!
Sir...you are doing a great job...I am preparing for engineering and find it the most helpful trick....I will recommend my friends to subscribe here...please make more such videos...it saves us from a lot of complex calculation....and saves time in the exam hall
Sir can we square 1025,1030 by this duplex method
i cannot understand how you solve but was good
thank u...
Interesting, but you should go through more difficult cases, such as 9768!
Freddie Hand I tried the number 5814 and the answer came flawlessly (p.s.- I had used it while solving a sum in physics.)
Hi,
Please do check out our android app Math tricks workout -
play.google.com/store/apps/details?id=com.sankhyantra.mathstricks&hl=en
sir ! how did that ten come????
Duplex of abcd : D(abcd) = 2xaxd + 2xbxc. Hence, D(1221) = 2x1x1 + 2x2x2= 10