Q3 of 168 Page 30

If then

As,

We know that,

∴

⇒

Clearly, in comparison with y, we can say that–

Hence,

Option (c) is the only correct answer.

Let f(x) = x – [x], x ∈ R, then is

If, then f’(1) is

If f(x) = 1 – x + x² – x³ + ….. – x⁹⁹ + x¹⁰⁰, then f’(1) equals

If, then