If ( a b ) c = -5 a + 4 b and a b = 3, then the value of a ( b c ) is

MHT CET 2023 Mathematics question

If and , then the value of is

Answer: (C)

Use the vector triple product: . Comparing with (taking as independent): and . Now

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-095209