Выберите промежутки, на которых функция \(\displaystyle y=x^4{\small}\) убывает.

• \(\displaystyle (-3;\,0)\)
• \(\displaystyle (2;\,6)\)
• \(\displaystyle (-4;\,4)\)
• \(\displaystyle (0;\,2)\)
• \(\displaystyle (-3;\,2)\)
• \(\displaystyle (-6;\,-2)\)