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2 years ago

Factor this expression, 3n^2+9n+6 If is possible

Mathematics

1 answer:

Komok [63]2 years ago

8 0

Answer is 3(n + 1)(n + 2)

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Convert Зcis 180° to rectangular form. А. -3 в. -3i с. з D. Зі.

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Answer:

-3

Step-by-step explanation:

$3 cis(180^\circ)$ means $3(\cos(180^\circ)+i \sin(180^\circ))$

What is the $x$ -coordinate value that corresponds to $\theta=180^\circ$ . That value is -1.

What is the $y$ -coordinate value that corresponds to $\theta=180^\circ$ . That value is 0.

So this implies $\cos(180^\circ)=-1 \text{ and } \sin(180^\circ)=0$ .

$3 cis(180^\circ)$

$3(\cos(180^\circ)+i \sin(180^\circ))$

$3(-1+i (0))$

$3(-1+0)$

$3(-1)$

$-3$

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