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(a) 2g3. What angle does the vector 31 + 4 + 12k make with z-axis?음12(d) 13(b) cos-1(c) cos-134cos(a) cos-l13117 What will |
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Answer» angle made by 3i+4j+12k with x axis is cos∅ = 12/(√3²+4²+12²) = 12/13∅ = cos-¹(12/13) option D |
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