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Class 12 Three Dimensional Geometry · Mcq Single Correct1 Marksdirection_cosines

Class 12 Maths · Three Dimensional Geometry · Mcq Single Correct #65

A line makes angles π/4 with each of the positive y- and z-axes. Find its angle with the positive x-axis.

✅ Step-by-Step Solution

Final Answer: Option (C): π/2
  1. cos²α=1−1/2−1/2=0, hence α=π/2.

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