pair-st-lines

Question: The angle between the pair of straight lines ${{x}^{2}}+4{{y}^{2}}-7xy=0$, is

1) ${{\tan }^{-1}}\left( \frac{1}{3} \right)$

2) ${{\tan }^{-1}}3$

3) ${{\tan }^{-1}}\frac{\sqrt{33}}{5}$

4) ${{\tan }^{-1}}\frac{5}{\sqrt{33}}$

Solution:

Explanation: No Explanation

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)