3 practice questions for this chapter, gradeable instantly.
Q1
∑n=13n3\displaystyle\sum_{n=1}^{3}n^3n=1∑3n3 is equal to
Q2
If ∑k=12k=3\displaystyle\sum_{k=1}^{2}k=3k=1∑2k=3, then the value of ∑k=3nk\displaystyle\sum_{k=3}^{n}kk=3∑nk is equal to
Q3
∑n=110n−∑n=15n\displaystyle\sum_{n=1}^{10}n-\sum_{n=1}^{5}nn=1∑10n−n=1∑5n is equal to
