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Jlenok [28]
2 years ago
12

When a blood sample is centrifuged the buffy coat represents the

SAT
1 answer:
yawa3891 [41]2 years ago
8 0

When a blood sample is centrifuged the buffy coat represents the "fraction of an anticoagulated blood that contains less than one percent of the total blood - the leukocytes and platelets.

<h3>What happens after centrifugation?</h3>

Following centrifugation, the buffy coat is the fraction of an anticoagulated blood sample that comprises the majority of the white blood cells and platelets.

Thus, the buffy coat is simply a combination of:

  • leukocytes and
  • platelets.

Learn more about centrifugation:
brainly.com/question/10472461
#SPJ1

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Simplify: 1 + i + i^2 + i^3 +i^4 +i^5 if i^2 =-1.
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1 + <em>i</em> + <em>i</em> ² + <em>i</em> ³ + <em>i</em> ⁴ + <em>i</em> ⁵ = 1 + <em>i</em> + <em>i</em> ² (1 + <em>i</em> + <em>i </em>² + <em>i</em> ³)

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<em />

Alternatively, notice that

1 - <em>i</em> ⁶ = (1 - <em>i</em> ) (1 + <em>i</em> + <em>i</em> ² + <em>i</em> ³ + <em>i</em> ⁴ + <em>i</em> ⁵)

so that

1 + <em>i</em> + <em>i</em> ² + <em>i</em> ³ + <em>i</em> ⁴ + <em>i</em> ⁵ = (1 - <em>i</em> ⁶) / (1 - <em>i</em> )

Now, <em>i</em> ⁶ = (<em>i</em> ²)³ = (-1)³ = -1, so

1 + <em>i</em> + <em>i</em> ² + <em>i</em> ³ + <em>i</em> ⁴ + <em>i</em> ⁵ = (1 - (-1)) / (1 - <em>i</em> )

… = 2 / (1 - <em>i</em> )

Multiply the numerator and denominator by the conjugate of 1 - <em>i</em> :

… = 2 (1 + <em>i</em> ) / ((1 - <em>i</em> ) (1 + <em>i</em> ))

… = 2 (1 + <em>i</em> ) / (1² - <em>i</em> ²)

… = 2 (1 + <em>i</em> ) / (1 + 1)

… = 1 + <em>i</em>

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THANK you and have a great day!

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