Questions
The angle between the line and the positive axis is then the value of is
a
15
b
25
c
35
d
45
detailed solution
Correct option is A
The angle θ made by line with x-axis in positive direction is called inclination of the line. The slope of the line ax+by+c=0 is m=−ab and θ=tan−1−ab The slope of the line x+2y−5=0 is m=−ab=−12 If θ is inclination then tanθ=−12,θ lies in the second quadrant. Use right triangle the value for sinθ=15Talk to our academic expert!
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