• recategorized by
468 views

Please log in or register to answer this question.

Position:
Show:

Related questions

0 0 votes
2 2 answers
976
976 views
Arjun asked Sep 23, 2019
976 views
The series $\sum_{k=2}^{\infty} \frac{1}{k(k-1)}$ converges to$-1$$1$$0$does not converge
3 3 votes
1 1 answer
596
596 views
go_editor asked Sep 13, 2018
596 views
Let $A=\begin{pmatrix} -1 & 2 \\ 0 & -1 \end{pmatrix}$, and $B=A+A^2+A^3+ \dots +A^{50}$. Then$B^2 =1$$B^2 =0$$B^2 =A$$B^2 =B$
0 0 votes
1 1 answer
462
462 views
go_editor asked Sep 13, 2018
462 views
How many complex numbers $z$ are there such that $\mid z+1 \mid = \mid z+i \mid$ and $\mid z \mid =5$?$0$$1$$2$$3$
0 0 votes
1 1 answer
976
976 views
Arjun asked Sep 23, 2019
976 views
Let $\{a_n\}$ be a sequence of non-negative real numbers such that the series $\Sigma_{n=1}^{\infty} a_n$ is convergent. If $p$ is a real number such that the series $\Si...