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Zina [86]
3 years ago
12

Please help me with this question!!!

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0

Answer:

Step-by-step explanation:

z1=6(cos\frac{3\pi}{2}+isin \frac{3\pi}{2})=6e^{i\frac{3 \pi}{2}} \\similarly~ z2=12e^{i\frac{5 \pi}{6}} \\z1z2=72e^{i(\frac{3 \pi}{2}+\frac{5 \pi}{6}} )\\=72e^{i(\frac{9 \pi+5 \pi}{6}} )\\=72e^{i \frac{7 \pi}{3}} \\=72(cos \frac{7 \pi}{3}+i sin \frac{7 \pi}{3})

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Can someone help me please
Yakvenalex [24]

Answer:

the third one ( -7+u+8t)

Step-by-step explanation:

first you add the ts together and you get 8. Then u keep the U and cancel out the +2 nad the -2. Then you are left with your answer. have a nice day

7 0
3 years ago
2( 4x + 2) = 4x - 12(x-1)​
aksik [14]

Answer:

x=\frac{1}{2}

Step-by-step explanation:

distribute 2 into (4x+2) and -12 into (x-1)

8x+4=4x-12x+12

combine like terms

8x+4=-8x+12

add -8x on both sides

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16x+4=12

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8 0
3 years ago
Simplify (34)−1.
elena55 [62]

The simplified form of the expression; (3/4)-¹ as given in the task content is; 4/3.

<h3>What is the simplified form of the expression as given in the task content?</h3>

It follows from the task content that the expression in discuss can be simplified as follows by the laws of indices;

(3/4)-¹

Hence, due to negative exponent, the result is;

= 1 ÷ (3/4)¹

= 1 × (4/3)

= 4/3.

Read more on indices;

brainly.com/question/170984

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2 years ago
Anyone know the answer to these?
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Step-by-step explanation:

Speakers =£ 31.5

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Hope it will help you :)

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Answer:

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2 years ago
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