Class 11 Book Solution from Miscellaneous in Trigonometric Functions of Associated Angles Question No: 59
যদি হয়, \(\theta + \phi = 0\) তবে দেখাও যে, \(sin(120^0-\theta) = cos(30^0-\phi)\)
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Trigonometric Functions of Associated Angles (সংযুক্ত কোণসমূহের ত্রিকোণমিতিক অপেক্ষকসমূহ) Solutions from Popular Books
Class 11 (একাদশ শ্রেণী) Miscellaneous (বিবিধ - একাদশ শ্রেণী) Other Chapter Solutions
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