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The two equal sides of an isosceles tria...

The two equal sides of an isosceles triangle with fixed base b are decreasing at the rate of 3 cm. per second. How fast is the area decreasing when the two equal sides are equal to the base ?

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The correct Answer is:
`sqrt(3)b cm^(2)//sec`.
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KUMAR PRAKASHAN-APPLICATION OF DERIVATIVES -MISCELANEOUS EXERCISE - 6
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