05-26-2021, 12:21 PM

Different sets of (Delhi, Outside and Foreign) CBSE XII Board Exam Question Papers with Answer Keys are attached here.

Some questions from the question papers are :

Some questions from the question papers are :

- Show that all the diagonal elements of a skew symmetric matrix are zero.
- Prove that if E and F are independent events, then the events E and F' are also

independent. - Often it is taken that a truthful person commands, more respect in the society. A man is known to speak the truth 4 out of 5 times. He throws a die and reports that it is a six. Find the probability that it is actually a six. Do you also agree that the value of truthfulness leads to more respect in the society?