Question
Question: Angle between the lines 2x – y –15 = 0 and 3x + y + 4 = 0 is-...
Angle between the lines 2x – y –15 = 0 and 3x + y + 4 = 0 is-
A
900
B
450
C
1800
D
600
Answer
450
Explanation
Solution
m1 = 2
m2 = –3
tan q = ± (1+m1 m2m1−m2)
tan q = ± [1+2(−3)2+3]
tan q = ± (–1)
q = 450 or 1350