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12th Class Mathematics Applications of Derivatives

  • question_answer 1)
    The radius of a circle is increasing at the of 0.7 cm/s. What is the rate of increase of its circumference ? 

    Answer:

    Given : ?.. (1)       r be the radius of the circle.       Circumference of the circle,              [Using (1)]       = 1.4        Rate of increase of circumference of the circle is 1.4  


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