The domain of the function cos-1 (2x – 1) is
Answer & explanation
Correct answer: option 1
cos-1 (2x – 1) ⇒ Let $f(x)=cos^{−1}(2x−1)$
$∵−1≤2x−1≤1$
$⇒0≤2x≤2⇒0≤x≤1$
$∴x∈[0,1]$
Option 1 is correct.
The domain of the function cos-1 (2x – 1) is
Correct answer: option 1
cos-1 (2x – 1) ⇒ Let $f(x)=cos^{−1}(2x−1)$
$∵−1≤2x−1≤1$
$⇒0≤2x≤2⇒0≤x≤1$
$∴x∈[0,1]$
Option 1 is correct.