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Cosec20+root3se...
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Cosec20+root3sec20 = 4tan50
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Cosec20
°
+
3
sec20
°
= 4tan50
°
asked by
Èndy Rozarió
উচ্চতর গণিত
সংযুক্ত কোণের ত্রিকোণমিতিক অনুপাত