MCQ
જો $A = \left[ {\begin{array}{*{20}{c}}1&0&0\\0&1&0\\a&b&{ - 1}\end{array}} \right]$, તો ${A^2} = $
- ✓એકમ શ્રેણિક
- Bશૂન્ય શ્રેણિક
- C$A$
- D$-A$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| વિભાગ-A | વિભાગ-B |
| R₁ = {(1, 1), (1, 2), (2, 1)} | માત્ર સંમિત |
| R₂ = {(1, 1), (2, 2), (3, 3), (1, 2), (3, 1)} | સામ્ય |
| R₁ = {(1, 1), (2, 2), (3, 3)} | માત્ર સ્વવાચક |
| $Face:$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| $P(F)$ | $0.1$ | $0.24$ | $0.19$ | $0.18$ | $0.15$ | $0.14$ |
If an even face has turned up, then the probability that it is face $2$ or face $4$, is