Question:
Z nasledujúcich funkcií vyberte všetky, ktoré sú klesajúce na celom svojom definičnom obore.
Project ID:
7400220145
Answer 1:
$$f(x) = \frac{x^2}2 + \frac{x^3}3$$
Answer 1 Correct:
0
Answer 2:
$$f(x) = x + \frac{x^2}2+ \frac{x^3}3$$
Answer 2 Correct:
0
Answer 3:
$$f(x) =\cos x -2x $$
Answer 3 Correct:
1
Answer 4:
$$f(x) = 2\sin x -x$$
Answer 4 Correct:
0
Answer 5:
$$f(x) =\sqrt{x} +x $$
Answer 5 Correct:
0
Answer 6:
$$f(x) =x \cdot \ln x $$
Answer 6 Correct:
0
Answer 7:
$$f(x) =x +\ln x $$
Answer 7 Correct:
0
Answer 8:
$$f(x) =2^{-x}+1 $$
Answer 8 Correct:
1