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Question: The angle between the lines whose intercepts on the axes are a, – b and b, – a respectively, is

1) ${{\tan }^{-1}}\frac{{{a}^{2}}-{{b}^{2}}}{ab}$

2) ${{\tan }^{-1}}\frac{{{b}^{2}}-{{a}^{2}}}{2}$

3) ${{\tan }^{-1}}\frac{{{b}^{2}}-{{a}^{2}}}{2ab}$

4) None of these

Solution:

Explanation: No Explanation

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