Question

1,9⋅1,9+2(−2π3)−2π4−2π4 =

Answer 1

Ответ:

3,61-28π

Объяснение:

3.61+2×(-6π)-8π-8π

3.61- 12π-8π-8π

(-12-8-8)×π=-28π

3.61-28π

Answer 2

Let's break down the expression step by step:

1. $1.9 \times 1.9$ = $3.61$
2. $2 \left( -\frac{2\pi}{3} \right)$ = $-\frac{4\pi}{3}$
3. $-2\pi \times 4$ = $-8\pi$
4. $-2\pi \times 4$ = $-8\pi$

Now let's put it all together:

$3.61 - \frac{4\pi}{3} - 8\pi - 8\pi$

To simplify this, combine the $-8\pi$ terms:

$3.61 - \frac{4\pi}{3} - 16\pi$

To combine the constants and $\pi$ terms, first find a common denominator for $\frac{4\pi}{3}$ and $-16\pi$. The common denominator is $3$, so you can rewrite $-16\pi$ as $-\frac{48\pi}{3}$:

$3.61 - \frac{4\pi}{3} - \frac{48\pi}{3}$

Now, combine the fractions:

$3.61 - \frac{4\pi + 48\pi}{3}$

$3.61 - \frac{52\pi}{3}$

So, the final result is approximately:

$3.61 - 17.333...\pi$