2
You visited us
2
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VI
Mathematics
Line Segment
If the line s...
Question
If the line segment joining the points P (x
1
, y
1
) and Q (x
2
, y
2
) subtends an angle α at the origin O, prove that
OP · OQ cos α = x
1
x
2
+ y
1
, y
2