Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The sum of the series 1 + 
+ 
+ 
+…. ∞ is -
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
We know that
e x = 1 + x + 
+ 
+ 
+….
e –x = 1 – x + 
– 
+ 
–….
⇒ 
= 1 + 
+ 
+ 
+….. Put, x = 
⇒ 
= 1 + 
+ 
+….
⇒ 
= 1 + 
+ 
+….
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