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sin10+sin20+sin30+sin40+sin50..................sin360

sin10+sin20+sin30+sin40+sin50..................sin360
 

Grade:9

1 Answers

Subhash Kumar Mehta
100 Points
6 years ago
sin10+sin20+....+sin90+sin100+....+sin270+sin280+.....+sin360=sin10+sin20+...+sin90+cos10+...+cos90-sin10-...-sin90-cos10-...-cos90=0[+sin & -sin and +cos & -cos cancel out each other]

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