SSC CGL Model Paper 3

© examsiri.com

Question : 73 of 100

Marks: +1, -0

Find the angle between two lines

2x + 4y - 121 = 0

and

-2x + 6y-19 = 0

30°
60°
90°
45°

Solution:

2x + 4y - 121 =0

y=-1/2x+121/4

y_1=m_1x_1+ c_1

Here

m_1=-1/2

And,

-2x + 6y =19

y=1/3x+19/6

y_2=m_2x_2+ c_2

m_2=1/3

W.K.T

\tanθ=|{m_1-m_2}/{1+m_1m_2}|

=|{1/3+1/2}/ {1-1/3 .1/2}|

|{5/6}/{5/6}|=1=\tan45°

© examsiri.com

Go to Question:

Prev Question

Next Question