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The measure of two sides of a triangle i...

The measure of two sides of a triangle is 10 m and 15 m. The angle between them is increasing at the rate of 0.01 radi./sec. when the angle between them is `(pi)/(3)`, find the rate of change of increase in third side.

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The correct Answer is:
`(3)/(20)sqrt((3)/(7))m//s`
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