AP EAMCET · Maths · Three Dimensional Geometry
If \((2,-1,2)\) and \((K, 3,5)\) are the triads of direction ratios of two lines and the angle between them is \(45^{\circ}\), then the value of \(K\) is
- A \(2\)
- B \(3\)
- C \(4\)
- D \(6\)
Answer & Solution
Correct Answer
(C) \(4\)
Step-by-step Solution
Detailed explanation
Given direction ratios are \((2,-1,2)\) and \((K, 3,5)\) Let \(\theta\) be the angle between two lines, then…
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