& and $|(2)$

Like relational operators, logical operators work perfectly fine with vectors and matrices.

Both the vectors linkedin and facebook are available again. Also a matrix $-$ views $-$ has been defined; its first and second row correspond to the linkedin and facebook vectors, respectively. Ready for some advanced queries to gain more insights into your social outreach?

Instructions

$100$ XP

When did LinkedIn views exceed $10$ and did Facebook views fail to reach $10$ for a particular day? Use the linkedin and facebook vectors.

When were one or both of your LinkedIn and Facebook profiles visited at least $12$ times?

When is the views matrix equal to a number between $11$ and $14,$ excluding $11$ and including $14?$