Q. 1 A3.7( 3 Votes )

Find the angles b

Answer :

Given:


The equations of the lines are


3x + y + 12 = 0 … (1)


x + 2y 1 = 0 … (2)


To find:


Angles between two lines.


Explanation:


Let m1 and m2 be the slopes of these lines.


m1 = -3, m2


Let θ be the angle between the lines.
Then,




Hence, the acute angle between the lines is 45°


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