CUET Preparation Today
CUET
-- Mathematics - Section B1
Relations and Functions
The domain of the function f(x) = log10log10(1+ x3) is
(–1, ∞)
(0, ∞)
[0, ∞)
For f(x) to be defined log10(1+ x3) > 0
⇒ 1+ x3 > 100 = 1 or x3 > 0 ⇒ x ∈ (0, ∞).
Hence (B) is the correct answer.
