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stellarik [79]
3 years ago
5

I need help with part b please and thank you

Mathematics
1 answer:
Serhud [2]3 years ago
7 0
That trigonometry lol
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If n is a positive integer, then lim (n-->infinity) (1/n) [1/(1+(1/n)) + 1/(1+(2/n))+...+1/(1+(n/n)] is?
Anton [14]
The correct answer to this question is <span>d.) integral from 1 to 2 of (2/(x+1))
</span>To solve this:

Since Δx = 1/n. 
lim (n→∞) Δx [1/(1+Δx) + 1/(1+2Δx)+ ... + 1/(1+nΔx)] 
= lim (n→∞) Σ(k = 1 to n) [1/(1 + kΔx)] Δx. 

x <---> a + kΔx 

a = 0, then b = 1, so that Δx = (b - a)/n = 1/n

Since (1 + kΔx) combination, a = 1 so that b = 2. 
Then, f(1 + kΔx) <-----> f(x) ==> f(x) = 1/x. 

This sum represents the integral 
∫(x = 1 to 2) (1/x) dx, so the correct answer is <span>d.) integral from 1 to 2 of (2/(x+1))

Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 
</span>
3 0
3 years ago
Plzz answer correctly plz!!!
emmasim [6.3K]

Answer: 345

Step-by-step explanation:

4x4=8 17x17=289 8x4=32 289+32+16+8= 345

6 0
4 years ago
Three lots of three make
Sveta_85 [38]
3 lots of 3 make 9 use a calculator
8 0
3 years ago
You purchase a television anda blu-ray palter together for $1,759. The blue-ray player, by itself, cost $469. How much did the t
satela [25.4K]
Both together cost $1759.
That means that sum of the two prices is $1759.
The operation that is the opposite of addition is subtraction.
We subtract $469 from $1759 to find the price of the televition.

$1759 - $469 =

     1759
  -    469
-----------
     1290

$1759 - $469 = $1290

Answer: The price of the television is $1290.


7 0
3 years ago
Read 2 more answers
Find the measure of z. <br><br> A. 80°<br> B. 83 °<br> C. 70 °<br> D. 87 °
Digiron [165]
The answer to the question is c. 70°
5 0
4 years ago
Read 2 more answers
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