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IceJOKER [234]
3 years ago
14

Find the value of 8!.

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
5 0

Answer:

40320

Step-by-step explanation:

! means take that number and multiply all the numbers down to 1

8! means

8*7*6*5*4*3*2*1 =40320

postnew [5]3 years ago
3 0

Answer:

  • 40320

Step-by-step explanation:

we have to find 8!

  • 8!
  • <em>8</em><em>×</em><em>7</em><em>×</em><em>6</em><em>×</em><em>5</em><em>×</em><em>4</em><em>×</em><em>3</em><em>×</em><em>2</em><em>×</em><em>1</em>
  • <em>4</em><em>0</em><em>,</em><em>3</em><em>2</em><em>0</em>
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forsale [732]

Answer:

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Step-by-step explanation:

we know that

step 1

Find cos(\theta)

we know that

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Remember that

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Remember that

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step 2

Find sin(\theta)

we know that

tan(\theta)=\frac{sin(\theta)}{cos(\theta)}

sin(\theta)=tan(\theta)cos(\theta)

we have

cos(\theta)=\frac{1}{\sqrt{10}}

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substitute

sin(\theta)=(3)(\frac{1}{\sqrt{10}})

sin(\theta)=\frac{3}{\sqrt{10}}

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cos(2\theta)=2(\frac{1}{\sqrt{10}})^2-1

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cos(2\theta)=-\frac{4}{5}

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