wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The line perpendicular to y=3x+2 and passing through (2,1) is rotated through an angle 60 about (2,1). Area of triangle formed by these lines and x-axis is A units2, then 4A2 is :

Open in App
Solution

Line perpendicular to y=3x+2 makes an angle 150 with + direction of x-axis
Now the required line which makes an angle 60 with this,will have slope tan90 or tan30
Required possible lines are x=2 or y1=13(x2) x3y2+3=0
Area of triangle formed by
x=2,x3y2+3=0 and x-axis is
A=12.b.h=32units24A2=3

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon