Straight Line Question 124
Question: Coordinates of the foot of the perpendicular drawn from (0,0) to the line joining $ (a\cos \alpha ,a\sin \alpha ) $ and $ (a\cos \beta ,a\sin \beta ) $ are [IIT 1982]
Options:
A) $ ( \frac{a}{2},\frac{b}{2} ) $
B) $ [ \frac{a}{2}(\cos \alpha +\cos \beta ),\frac{a}{2}(\sin \alpha +\sin \beta ) ] $
C) $ ( \cos \frac{\alpha +\beta }{2},\sin \frac{\alpha +\beta }{2} ) $
D)None of these
Correct Answer: B
Show Answer
Answer:
Solution:
BETA
