11th Class
Mathematics
Sequence and Series
Question Bank
Sequence and Series
question_answer
If the sum of m, 2m, 3m terms of an A.P. are \[{{\mathbf{S}}_{\mathbf{1}}},{{\mathbf{S}}_{\mathbf{2}}},{{\mathbf{S}}_{\mathbf{3}}}\] respectively, then (\[{{\mathbf{S}}_{\mathbf{2}}}-{{\mathbf{S}}_{\mathbf{1}}}\]) equals to __