UPSC 2017 CDS I Math Paper

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Question : 11 of 100

Marks: +1, -0

If x=t‌

1

t−1

and y=t‌

t

t−1

,t>0,t≠1, then what is the relation between x and y ?

[2017 CDS-I]

yx=x
1
y
x
1
y
=y
1
x
xy=yx
xy=y
1
x

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