TS EAMCET 4 May 2018 Shift 1 Solved Paper

Section: Mathematics
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Question : 22 of 160
 
Marks: +1, -0
If x =
∞
Σ
n=0
c
o
s2n
θ
, y =
∞
Σ
n=0
s
i
n2n
θ
, z =
∞
Σ
n=0
c
o
s2n
θ
s
i
n2n
θ
and 0 < θ <
Ï€
2
, then
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