find the equation of straight line making an angle 120 degrees with positive direction of X-axis measured counter -clockwise and passing through (0,-2)
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Find the slope of the line, which makes an angle of 30° with the positive direction of y-axis ... The line makes angle of 30° from positive y axis Hence it makes angle of (90° + 30°) from positive x axis i.e. 120° from positive x axis Hence θ = 120° Sl. ... Ex 10.1, 7 - Chapter 10 Class 11 Straight Lines.
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