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uranmaximum [27]
3 years ago
11

Which expression is equivalent to cos(3x) sin x?

Mathematics
1 answer:
Drupady [299]3 years ago
4 0

The answer is A)1/2[sin(4x)+sin(2x)]

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Convert Зcis 180° to rectangular form.<br> А. -3<br> в. -3i<br> с. з<br> D. Зі.
Sunny_sXe [5.5K]

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

5 0
3 years ago
Eric"s father asked him to stop at the store and buy some potatoes. the price of the fruits and vegetables at the grocery is bas
meriva
(I hope I can get brainliest! :))
The total price equals how much food he buys and the price per kilogram 

<span>t = pk which is price per kilogram and number of kilo of food multiplied.
</span>
I hope I could help

6 0
3 years ago
Read 2 more answers
As fast as possible before today
andrezito [222]

I am writing answers directly.

<h3>1. 5×5=5 {}^{2}</h3><h3>2. -5×-5×-5×-5 = ( - 5) {}^{4}</h3><h3 /><h3>3. 2×2×2=2 {}^{3}</h3><h3>4. n×n×n×n×n×n=n {}^{6}</h3>
6 0
3 years ago
Please please HELP it will HELP
BaLLatris [955]

Answer:

Emphasize more, please

Step-by-step explanation:

Emphasize, please

8 0
3 years ago
Hey Guys, Thank you for all your help and support. I was wondering if you could help me one last time, I'm really confused. Than
SCORPION-xisa [38]
(-2,-3) is the answer to the first part
5 0
3 years ago
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