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	Show that sin 20° sin 40° sin 60° sin 80° = 3/16 #iitjee #maths (BKMathur Maths Delhi) View
	Sin20Sin40Sin60Sin80 important trigonometry question for board and other exams (Unknown teacher) View
	Sin20°.Sin40°.Sin60°.Sin80°=3/16 Prove it \|\| Trigonometry Question\|\|Very IMPORTANT for Exam Learn it (Education Platform - Manish Rana) View
	सिद्ध कीजिए की sin 20^@ * sin 40^@ * sin 80^@ = sqrt3/8 \| 11 \| संयुक्त कोणों के त्रिकोणमितीय फलन... (Doubtnut) View
	১০। প্রমাণ কর যে, sin 20° sin40° sin60° sin80° = 3/16 (MathBatayon) View
	sin20°sin40°sin60°sin80°=3/16 (Mathinkle) View
	सिद्ध कीजिए की: sin 20^(@) sin40^(@) sin 60^(@) sin 80^(@) =(3)/(16) \| 11 \| त्रिकोणमितीय फलन ... (Doubtnut) View
	\|\| Prove that sin 20°.sin 40°.sin 60°.sin 80° = 3/16. \|\| cos π/9.cos 2π/9.cos 3π/9.cos 4π/9 = 1/16. (Suma Study Centre) View
	4 Show that sin 20 sin 40 sin 60 sin 80 = 3 upon 16 (GURUTVAM EDUCATION) View
	सिध्द कीजिए कि: `sin 20^(@) sin 40^(@) sin 60^(@) sin 80^(@) = (3)/(16)` (Doubtnut) View