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01-06-2023
Mathematics

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Two sides of a triangle have lengths 7 m and 12 m. The angle between them is increasing at a rate of 0.03radians /min. How fast is the length of the third side increasing when the angle between the sides of fixed length is 1/3 radians. Note: The length of the side c of a triangle is given by the law of cosines: c²a²b² - 2ab cos(0), where a and b are the other two sides and is the angle between them. Check the Trigonometric formulas at the end of the book on Reference

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