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

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

Step-by-step explanation:

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

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

1- =

+ = 1

2 = 1

= 1/2

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

Step-by-step explanation:

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

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

1-  =  

+  = 1

2 = 1

= 1/2

Step-by-step explanation:

step-by-step explanation:

the true ones are a b and d

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation: