WBJEE · Maths · Straight Lines
If the three points \((3 q, 0),(0,3 p)\) and \((1,1)\) are collinear then which one is true ?
- A \(\frac{1}{\mathrm{p}}+\frac{1}{\mathrm{q}}=1\)
- B \(\frac{1}{\mathrm{p}}+\frac{1}{\mathrm{q}}=1\)
- C \(\frac{1}{\mathrm{p}}+\frac{1}{\mathrm{q}}=3\)
- D \(\frac{1}{\mathrm{p}}+\frac{3}{\mathrm{q}}=1\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{\mathrm{p}}+\frac{1}{\mathrm{q}}=3\)
Step-by-step Solution
Detailed explanation
Hints: \(\mathrm{A}(3 \mathrm{q}, 0) \mathrm{B}(0,3 \mathrm{p}) \mathrm{C}(11)\) Slope \(=1 \mathrm{AC}=5 \log \mathrm{BC}\)…
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