The domain of the function $f(x) = sin^{-1}(2x-3)$, is
Answer & explanation
Correct answer: option 3
The domain of $sin^{-1}$ x is [-1,1]. Therefore, $f(x) = sin^{-1}(2x-3)$ is defined for all x satisfying
$-1 ≤ 2x - 3 ≤ 1 ⇒ 3-1 ≤ 2x ≤ 3+1 ⇒1 ≤ x ≤ 2 ⇒ x ∈ [1,2]$
Hence, domain of f(x) = $sin^{-1}(2x-3) $ is [1,2]