In xyplane, a straight line L 1 bisects the 1st quadrant and another straight line L 2 trisects the 2nd quadrant being closer to the axis ofy. The acute angle between L 1 and L 2 is
The line $$L_1$$ bisects the 1st quadrant
=> Angle between y-axis and $$L_1$$ = 45°
Also, $$L_2$$ trisects the 2nd quadrant
=> Angle between y-axis and $$L_2$$ = 30°
$$\therefore$$ Acute angle between $$L_1$$ and $$L_2$$ = 45° + 30° = 75°
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