If xf(x) – yf(y) = x – y then ∀ x, y ∈ R then f(1) + f(2) is
Answer & explanation
Correct answer: option 4
put y = 0
xf(x) = x ⇒ f(x) = 1
Hence (4) is the correct answer.
If xf(x) – yf(y) = x – y then ∀ x, y ∈ R then f(1) + f(2) is
Correct answer: option 4
put y = 0
xf(x) = x ⇒ f(x) = 1
Hence (4) is the correct answer.