Предмет: Алгебра, автор: danyaches

ОПРЕДЕЛИТЕ ,КАКИЕ ИЗ ДАННЫХ ФУНКЦИЙ ЯВЛЯЮТСЯ ЧЕТНЫМИ
y=2cos4x
y=3x+4
y=x²+4
y=2x³+1

Ответы

Автор ответа: NNNLLL54
0
1)\; y(-x)=2cos(-4x)=2cos4x=y(x)\; -\; chetnaya\\\\2)\; y(-x)=-3x+4\; - \; obshego\; vida\\\\3)\; y(-x)=(-x)^2+4=x^2+4=y(x)\; -\; chetnaya\\\\4)\; y(-x)=2(-x)^3+1=-2x^3+1\; -\; obshego\; vida
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2. Special in many ways

3. Tourist аttraction

4. Diverse wildlife

5. Protection of the ecosystem

6. Extinct species

7. Scientific expeditions

8. Harsh climate

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B. People who live in the Baikal region believe that it’s a unique and mysterious place. According to them, the water from Lake Baikal can cure different illnesses, gives you strength and clears your mind. They also say that the lake was formed millions of years ago when a huge, hot rock fell to earth. It melted the ice around and that was how Lake Baikal appeared. The story about the meteorite has, however, never been proved by scientists.

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