Straight Line Question 15
Question: If the lines $ y=(2+\sqrt{3})x+4 $ and $ y=kx+6 $ are inclined at an angle $ 60^{o} $ to each other, then the value of k will be
Options:
A) 1.
B) 2
C) 1
D) 2
Correct Answer: C $ \frac{k-(2+\sqrt{3})}{1+k(2+\sqrt{3})}=\sqrt{3} $ or $ k-2-\sqrt{3}=\sqrt{3}+2k\sqrt{3}+3k $ , $ k=\frac{-2(1+\sqrt{3})}{2(1+\sqrt{3})}=-1 $
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Answer:
Solution:
BETA
