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Please see the attach file. I am getting confused about how to convert my sum into log function

Please see the attach file. I am getting confused about how to convert my sum into log function

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Grade:11

3 Answers

Ajay
209 Points
7 years ago
The image is not clear, can you post a better image or confirm if we have to find follwing sum
1/1*2 + 1/2*3 + 1/3*4 --------------------infinity
Nicho priyatham
625 Points
7 years ago
B)
Mug it up  
 (1-1/2+1/3-1/4......infi)=ln2
given 1/1*2 - 1/2*3 + 1/3*4 …...infi= 2(1-1/2+1/3-1/4......infi)-1=2ln2 -1
PLZ APPROVE if useful 
incase of any doubts drop it down in answer box
raj
383 Points
7 years ago
hello,
the image is not clear, can you post a better image or confirm if we have to find follwing sum
1/1*2 + 1/2*3 + 1/3*4 --------------------infinity

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