MCQ
The angle between the lines whose intercepts on the axes are (a, -b) and (b, -a) respectively, is
- A$\tan ^{-1} \frac{a^2+b^2}{a b}$
- B$\tan ^{-1} \frac{b^2-a^2}{2}$
- ✓$\tan ^{-1} \frac{b^2-a^2}{2 a b}$
- D$\tan ^{-1} \frac{b^2-a^2}{a b}$
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