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Alenkasestr [34]
3 years ago
13

Can any body here prove that 1-1+1-1+1-1+1-1.........=1/2 And What is known as this series?​

Mathematics
1 answer:
Rina8888 [55]3 years ago
7 0

Answer:

This is known as grandi's series, the proof is in the explanation

Step-by-step explanation:

grandi's series, S_G is given by = 1-1+1-1+1-1+1-1...

1 - S_G = 1 - (1-1+1-1+1-1+1-1) = 1-1+1-1+1-1+1-1 = S_G

1- S_G = S_G

S_G + S_G = 1

2S_G = 1

S_G = 1/2

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Please answer right away
Andreas93 [3]

Answer:

20 miles with an error margin of  ± 8 miles

Step-by-step explanation:

The margin of error of a result is the range in which an error can vary. To find the margin of error between both distances we have to

28-12 = 16, that is, the variation of the result has a range of 16 miles. So we will look for the midpoint of both distances

(X2-X1)/2+X1=(28-12)/2+12=16/2+12=8+12=20

So from this midpoint the value can vary between 8 points below and 8 points above that would cover the difference of 16 miles that we observed at the beginning

In this way, the correct answer is 20 miles with an error margin of  ± 8 miles

Done

8 0
3 years ago
A fork costs £8.95 . Jay buys seven forks . How much does he spend?​
tensa zangetsu [6.8K]

Answer:

£62.65

Step-by-step explanation:

Multiply by seven

8 0
3 years ago
Read 2 more answers
A shirt that normally costs $30 is on sale for $21.75 what percent of the regular price is the sale price
Phoenix [80]

First Divide: 21.75/ 30

You will get 0.725

Then, multiply 0.725 by 100%

Then your answer should be: 72.5%

3 0
3 years ago
How do i work out compound interest?
Artyom0805 [142]

Answer:

The formula for compound interest is P (1 + r/n)^(nt), where P is the initial principal balance, r is the interest rate, n is the number of times interest is compounded per time period and t is the number of time periods.

6 0
2 years ago
Maggie's brother is 8 years younger than twice her age. The sum of their ages is 25.
g100num [7]

Answer:

the sum is 25 not 24?

Step-by-step explanation:

6 0
3 years ago
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