21/10/2014
Wish you all a very HAPPY & PROSPEROUS DIWALI
The Wrangler's Academy
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The Wrangler Academy is a coaching institute in Delhi trainning students in Maths for IIT-Mains and IIT-Advance. Website: http://www.thewrangleracademy.com
21/10/2014
SHORT-CUT: If the average of 9 numbers is 11. The average of the first 5 is 13 and that of the last five is 10. Then to find the value of the 5th number(=x say) we write: x = 5 X 10 + 5 X 13 - 9 X 11
There is a better method which I call THE COMPENSATION METHOD which I generally discuss in my quant classes.
https://www.facebook.com/groups/1419994304931678/
24/08/2014
A question on integration
24/08/2014
Our third question for class 12 for today
24/08/2014
Our second question for class 12 for today
24/08/2014
Our first question for class 12 for today
24/08/2014
Our third question for class 11 for today
24/08/2014
Our second question for class 11 for today
24/08/2014
Our first question for class 11 for today
22/08/2014
A problem from trigonometric Equations
If l, m, n are the direction cosines of a line, then find the minimum value of (a) l^4 + m^4 + n^4
(b) l^10 + m^10 + n^10
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