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MHT CET 2023 Mathematics question

MathematicsApplication of DerivativesMHT CET 2023

An object is moving in the clockwise direction around the unit circle . As it passes through the point , its y-co-ordinate is decreasing at the rate of 3 units per sec. The rate at which the x co-ordinate at this point is

Answer: (B)

Solution

Differentiate with respect to : . At with : . The positive sign agrees with

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Question ID VK-094777