The sum of series (2^19 + 1/2^19) + 2(2...

The sum of series `(2^19 + 1/2^19) + 2(2^18 + 1/2^18 ) +3 (2^17 + 1/2^17) ` + …. + (19) `(2+1/2)` + 20 is :

A

`2^21 - 4 + 1/2^19`

B

`2^21-16+1/2^18`

C

`2^21-24-1/2^19`

D

None of these

Verified by Experts

The correct Answer is:

A

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