Q43 of 51 Page 10

Find the angles between the linesx+y=1 and x+y=1.


x + y = 1 .. (1)

x +y = 1 .. (2)

From (1) m1= - and m2=

Now, c

tanθ =
tanθ =

θ = 30°

Now, acute angle θ = 30° and thus obtuse angle θ ’= 180-30 = 150°.

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