JEE MATHEMATICS MCQ: STRAIGHT LINES

1 Easy

1 of 1

Application +4 | -1

x \cos \alpha+y \sin \alpha=-\sin \alpha \tan \alpha

be the equation of a line, then the length of the perpendiculars on the line from the points

\left(a^2, 2 a\right),(a b, a+b)

and

\left(b^2, 2 b\right)

are in

View answer and explanation

Correct option: B

G.P.

Option B (G.P.) is correct because the lengths of the perpendiculars form a geometric progression, as shown by the relationship

l_1 l_3 = l_2^2

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