1.

सदिश `3veci-4vecj+12 veck` की दिक् कोज्याएं हैA. `(3)/(13),(4)/(13),(12),(13)`B. `(3)/(13),(-4)/(13),(12)/(13)`C. `(3)/(sqrt(13)),(4)/(sqrt(13)),(12)/(sqrt(13))`D. `(3)/(sqrt(13)),(-4)/(sqrt(13)),(12)/(sqrt(13))`

Answer» Correct Answer - B


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