JEE Mains · Maths · STD 11 - 3. trignometrical ratios,functions and identities
Let the distance between two parallel lines be 5 units and a point \(P\) lie between the lines at a unit distance from one of them. An equilateral triangle \(P Q R\) is formed such that \(Q\) lies on one of the parallel lines, while \(R\) lies on the other. Then \((Q R)^2\) is equal to _______ -.
- A 20
- B 24
- C 28
- D 32
Answer & Solution
Correct Answer
(C) 28
Step-by-step Solution
Detailed explanation
\(P R=\operatorname{cosec} \theta, P Q=4 \sec (30+\theta)\) For equilateral…
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