327 views
0 votes
0 votes
$\sum_{k=0}^{\propto }\left ( \sum_{j=0}^{k}1 \right )x^{k} = \sum_{k=0}^{\propto}(k+1)x^{k}$

 

How LHS=RHS here?

Please log in or register to answer this question.

Related questions

0 votes
0 votes
2 answers
1
Reshu $ingh asked Feb 7, 2019
550 views
“For every person x, if person x is a student in this class then x has studied Calculus.”S(x):Person x in the classC(x):x has studied Calculus.1.$\vartheta _{x} (S(x)...
0 votes
0 votes
2 answers
3