MCQ
Let $ 3\text{f(x)} - 2{\text{f}(\frac{1}{\text{x}}) = \text{x}}$ then f(2) is equal to:
- A$ \frac{2}{7}$
- B$ \frac{1}{2}$
- C2
- D7
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If the two lines are perpendicular then difference of their inclination angle is: