Class 10 Book Solution from Gonit Prakash in Trigonometric Ratios and Trigonometric Identities Question No: 23.3(6)(v)
যদি \(\frac{sin\theta}{x}=\frac{cos\theta}{y}\) হয়, তাহলে দেখাও যে, \(sin\theta-cos\theta=\frac{x-y}{\sqrt{x^2+y^2}}\)
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