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Question: Angle between the lines $2x-y-15=0$ and $3x+y+4=0$ is

1) ${{90}^{o}}$

2) ${{45}^{o}}$

3) ${{180}^{o}}$

4) ${{60}^{o}}$

Solution:

Explanation: No Explanation

Angle between two straight lines Bisector of angle between two lines

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