If (2a + 3b) (2c - 3d) = (2a - 3b) (2c + 3d), then:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. a/b = c/d.
(2a + 3b) (2c - 3d) = (2a - 3b) (2c + 3d)
⇒ 4ac - 6ad + 6bc - 9bd = 4ac + 6ad - 6bc - 9bd
⇒ 12bc = 12ad
⇒ bc = ad
⇒ a/b = c/d