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AP EAMCET Engineering 2015 Code C Paper
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© examsnet.com
Question : 52
Total: 160
6
∑
k
=
1
[
s
i
n
2
k
π
7
−
i
c
o
s
2
k
π
7
]
−
1
0
−
i
i
Validate
Solution:
−
i
6
∑
i
=
1
c
i
s
2
k
π
7
=
−
i
(
−
1
)
=
i
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