12th Class
Mathematics
Sample Paper
Maths Olympiad Model Paper-4
question_answer
If \[a=\sum\limits_{n=0}^{\infty }{\frac{{{x}^{3n}}}{(3\,\,n)!}},\] \[b=\sum\limits_{n=1}^{\infty }{\frac{{{x}^{3n-2}}}{(3n-2)!}}\] and \[c=\sum\limits_{n=1}^{\infty }{\frac{{{x}^{3n-1}}}{(3n-1)!}},\] then the value of \[{{a}^{3}}+{{b}^{3+}}{{c}^{3}}-3abc\]=