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CBSE X 2007 - Mathematics (Trigonometric Proof Problem) Prove that cos A / 1-tan A + sinA / 1-cot A = sin A + cos A CBSE X 2007 | 3 marks |
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CBSE X 2007 - Mathematics (Internal Division Problem) In what ratio does the line x-y-2=0 divides the line segment joining (3-1) and (8-9) CBSE X 2007 | 3 marks |
