If the curves, x^2 a + y^2 b =1 and x^2 c + y^2 d =1 intersect each other at an angle of 90°, then which of...

Question

If the curves, x^2 a + y^2 b =1 and x^2 c + y^2 d =1 intersect each other at an angle of 90°, then which of the following relations is TRUE?

Accepted Answer

(B)

JEE Main 2021 Mathematics question