If f:[1, ∞) → → [2, ∞) is given by f(x) = then f − − 1 (x)…

Maths Functions, Limits, Continuity and Differentiability Functions Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

If f:[1, ∞) → → [2, ∞) is given by f(x) = then f − − 1 (x) equals

Text Solution

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The correct answer is:

f: [1, ∞) → → [2, ∞)

F(x) ⇒ ⇒ x 2 - yx + 1 = 0 ⇒ ⇒ x

But ∴ ∴

∴ ∴

∴ ∴ ‘A’ is the correct alternative

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