Question
Mathematics Question on Straight lines
A straight line makes an angle a with the positive direction of x-axis, where cosa=23. If it passes through (0,-2), then its equation is
A
√3x+y+2=0
B
√3y+x+2=0
C
√3y+x+2√3=0
D
√3y-x+2√3=0
E
√3x-y-2√3=0
Answer
√3y-x+2√3=0
Explanation
Solution
The correct option is (D): √3y-x+2√3=0