TS EAMCET 2016 Code A Solved Paper

Section: Mathematics

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Question : 9 of 160

Marks: +1, -0

If the point

z=(1+i)(1+2i)(1+3i).......(1+10i)

lies on a circle with centre at origin and radius r,then r2=

10!
2×3×4×......×10
2×5×10×......×101
11!

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