Question:
From the following functions, select all that have the first derivative negative on the interval $(0; 4)$.
Project ID:
7400220135
Answer 1:
$f(x)=x$
Answer 1 Correct:
0
Answer 2:
$f(x)=x^2$
Answer 2 Correct:
0
Answer 3:
$f(x)=\frac{1}{x}$
Answer 3 Correct:
1
Answer 4:
$f(x)=\log\,x$
Answer 4 Correct:
0
Answer 5:
$f(x)=2^x$
Answer 5 Correct:
0
Answer 6:
$f(x)=\left(\frac12\right)^x$
Answer 6 Correct:
1
Answer 7:
$f(x)=\sin\,x$
Answer 7 Correct:
0
Answer 8:
$f(x)=\cos\,x$
Answer 8 Correct:
0