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UPSC 2016 CDS I Math Paper

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Question : 19 of 100
 
Marks: +1, -0
If
a
b
=
b
c
=
c
d
, then which of the following is/are correct?
1.
b3+c3+d3
a3+b3+c3
=
d
1

2.
a2+b2+c2
b2+c2+d2
=
a
d
Select the correct answer using the code given below.
[2016 CDS-I]
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