UPSC 2014 CDS II Math Paper

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Question : 32 of 100

Marks: +1, -0

What is

1

a−b

−

1

a+b

−

2b

a2+b2

−

4b3

a4+b4

−

8b7

a8−b8

equal to?

[2014 CDS-II]

a+b
a−b
1
0

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