UPSC CDS 2 2022 Math Paper

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Question : 92 of 100

Marks: +1, -0

If ‌

a+b

b+c

=‌

c+d

d+a

where a≠c, then which one of the following is correct?

a+b=c+d
a+c=b+d
a−b−c+d=0
a+b+c+d=0

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