Straight Line Question 274
Question: If the lines $ y=(2+\sqrt{3})x+4 $ and $ y=kx+6 $ are inclined at an angle $ 60{}^\circ $ to each other, then the value of k will be
Options:
A) 1
B) 2
C) -1
D) -2
Correct Answer: C $ \therefore \tan 60{}^\circ =\frac{m_1-m_2}{1+m_1m_2}\Rightarrow k=-1 $
Show Answer
Answer:
Solution:
$ \Rightarrow m_1=(2+\sqrt{3}); $ by (2)
$ \Rightarrow m_2=k $
BETA
