Solve this following

Question:

Let $\mathrm{A}=\left[\begin{array}{lll}1 & 0 & 0 \\ 1 & 1 & 0 \\ 1 & 1 & 1\end{array}\right]$ and $\mathrm{B}=\mathrm{A}^{20}$. Then the sum of the elements of the first column of $\mathrm{B}$ is :

  1. 211

  2. 251

  3. 231

  4. 210


Correct Option: , 3

Solution:

Solution not required

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now