MCQ
यदि $\left[\begin{array}{lll}a & c & 0 \\ b & d & 0 \\ 0 & 0 & 5\end{array}\right]$ एक अदिश आव्यूह (scalar matrix) है, तो $a + 2b + 3c + 4d$ का मान है$-$
- A$0$
- B$5$
- C$10$
- ✓$25$
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