((2sin2°+4sin4°+...+180sin180°)/(90))=? calculate.help me pleas.


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Question Number 198900 by Safojon last updated on 25/Oct/23

$\frac{2 s i n 2 ° + 4 s i n 4 ° + . . . + 180 s i n 180 °}{90} = ?$ $c a l c u l a t e . h e l p m e p l e a s .$
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