NDA Math Three Dimensional Geometry
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Consider the following statements :
1. A line in space can have infinitely many direction ratios.
2. It is possible for certain line that the sum of the squares of direction cosines can be equal to sum of its direction cosines.
Which of the above statements is/are correct?
1. A line in space can have infinitely many direction ratios.
2. It is possible for certain line that the sum of the squares of direction cosines can be equal to sum of its direction cosines.
Which of the above statements is/are correct?
[NDA-II 2021]
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