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Class 10 Book Solution from Gonit Prakash in Trigonometric Ratios of Complementary Angle Question No: 24.24.12(A)(iii)

সঠিক উত্তরটি নির্বাচন করো : \(\{cos(40^o+\theta)-sin(50^o-\theta)\}\)-এর মান
(a) \(2cos\theta\) (b) \(7sin\theta\) (c) 0 (d) 1

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