11th Class
Mathematics
Sample Paper
Maths Olympiad Model Paper-3
question_answer
If \[{{(1+x)}^{n}}={{C}_{0}}+{{C}_{1}}x+{{C}_{2}}{{x}^{2}}+......+{{C}_{n}}{{x}^{n}},\] then the value of \[{{C}_{0}}+2{{C}_{1}}x+3{{C}_{2}}+......+(n+1){{C}_{n}}\]will be