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A line makes angles α, β, γ with the positive directions of X-axis, Y-axis and Z-axis, respectively, then the directions cosines of the line are:
  • a)
    180° - α, 180° - β, 180° - γ
  • b)
    cos - α, cos - β, cos - γ
  • c)
    90° - α, 90° - β, 90° - γ
  • d)
    sin α, sin β, sin γ
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A line makes angles α, β, γ with the positive direction...
cos α, cos β, cos γ
By the definition of Direction Cosines
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A line makes angles α, β, γ with the positive directions of X-axis, Y-axis and Z-axis, respectively, then the directions cosines of the line are:a)180° -α, 180° -β,180° -γb)cos -α, cos -β,cos -γc)90° -α,90° -β,90° -γd)sin α, sin β, sin γCorrect answer is option 'B'. Can you explain this answer?
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A line makes angles α, β, γ with the positive directions of X-axis, Y-axis and Z-axis, respectively, then the directions cosines of the line are:a)180° -α, 180° -β,180° -γb)cos -α, cos -β,cos -γc)90° -α,90° -β,90° -γd)sin α, sin β, sin γCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A line makes angles α, β, γ with the positive directions of X-axis, Y-axis and Z-axis, respectively, then the directions cosines of the line are:a)180° -α, 180° -β,180° -γb)cos -α, cos -β,cos -γc)90° -α,90° -β,90° -γd)sin α, sin β, sin γCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A line makes angles α, β, γ with the positive directions of X-axis, Y-axis and Z-axis, respectively, then the directions cosines of the line are:a)180° -α, 180° -β,180° -γb)cos -α, cos -β,cos -γc)90° -α,90° -β,90° -γd)sin α, sin β, sin γCorrect answer is option 'B'. Can you explain this answer?.
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