Question

A line passes through the point (1,2 ) and makes 0 60 with X axis. A point on this

line at a distance 3 units from the point (1,2) is.......​

Answer 1

Answer:

Let coordinates of required point be (x,y)

∴x±1=3cos60

∘

⇒x=

2

3

∓1

=

2

1

,

2

5

y±2=3sin60

∘

⇒y=

2

3

3

∓2=

2

3

3

−2,

2

3

3

+2

∴(

2

5

,

2

3

3

)