WBJEE 2013 Math Solved Paper

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Question : 28 of 80

Marks: +1, -0

Let P = 1+

1

2×2

+

1

3×22

+.....
and Q =

1

1×2

+

1

3×4

+

1

5×6

+......
Then,

P = Q
2P = Q
P = 2Q
P = 4Q

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