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vagabundo [1.1K]

3 years ago

5

What is (1-i)^3 Please explain how you got that

1 answer:

My name is Ann [436]3 years ago

6 0

$\bf (1-i)^3\implies ~\hfill \begin{array}{cccccccl} 1^3&+&3(1)^2(-i)^1&+&3(1)^1(i)^2&+&(-i)^3\\\\ 1&+&(-3i)&+&(3i^2)&+&(-i^3)\\\\ 1&-&3i&+&3i^2&-&i^3 \end{array} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{let's recall that}}{i^2=-1\qquad \qquad i^3=-i} \\\\[-0.35em] ~\dotfill\\\\ 1-3i+3(-1)-(-i)\implies 1-3i-3+i\implies -2-2i$

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The H.C.F. of 3150 and a number is 42. Which of the following can be the number?

Eduardwww [97]

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2 years ago

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Delvig [45]

Answer:

10a + 2b

Step-by-step explanation:

Add the lengths of all sides:

3a + b + b + 2a - b + 3a + b + b + 2a - b

Now combine like terms:

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3 years ago

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2 years ago

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Leviafan [203]

Answer:

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Step-by-step explanation:

3/2

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7/8

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1.714285714/0.5

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3 years ago

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Ivanshal [37]

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3 years ago

Read 2 more answers