2 If the slopes of two lines are 3 -3 and ,then find the angle between them. 2
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Angle between two intercepted line
tanθ = (m1 - m2)/ (1 + m1.m2)
= (3 + 3)/ (1 + (3)(-3))
= 6/(1 - 9)
= 6/-8 = - 3/4
θ = tan`¹ (-3/4)
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