Practicing Success
Practicing Success
CUET Preparation Today
The values of a for which, the function $f(x)=a^x$ is increasing on R are given by: |
$0<$ a $<\infty$ $-\infty<$ a $<\infty$ $1<$ a $<\infty$ $0 \leq$ a $<\infty$ |
$1<$ a $<\infty$ |
$f(x) =a^x$ so $f'(x)=a^x\log a>0$ $a^x>0$ and $\log a > 0$ so $a>1$ so $1<$ a $<\infty$ |
