Questions
If the lines and are equally inclined to the line , then the value of m is given by
a
2m2-7m-7=0
b
7m2-7m-7=0
c
7m2-2m-7=0
d
2m2-7m-2=0
detailed solution
Correct option is C
It θ is the angle between the lines then tanθ=m−31+3m=m−(1/2)1+m(1/2)⇒ (m−3)(2+m)=±(2m−1)(3m+1)⇒ m2−m−6=±6m2−m−1⇒ 7m2−2m−7=0 or m2+1=0Talk to our academic expert!
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Angles made with the x - axis by two lines drawn through the point (1, 2) and cutting the line x + y = 4 at a distance from the point (1,2) are
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