UPSC CDS 2 2022 Math Paper

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Question : 100 of 100

Marks: +1, -0

What is

‌

1

x(x−y)(x−z)

+‌

1

y(y−z)(y−x)

+‌

1

z(z−x)(z−y)

equal to?

0
1
‌
1
xyz
−‌
1
xyz

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