Summing it up !!!
Algebra
Level
3
In the expression : \[(1-x)^{10}\]
What is the sum of all positive coefficients??
Details & Assumptions
\(\bullet\) In expression \((a+b)^{2}\) , on expanding we get \(a^2+2ab+b^2\) .Thus, coefficients are \(1,2,1\) and sum of coefficients is \(4\)
by
Sahil Jindal