# DERIVATIVE PROBLEMS AND SOLUTIONS(Part - 4)

Problem 1 :

y = ex ⋅ sin x

Solution :

Problem 2 :

Solution :

Problem 3 :

y = ln(xe7x)

Solution :

Problem 4 :

Solution :

Problem 5 :

Solution :

Problem 6 :

A water tank has the shape of an inverted circular cone with base radius 2 meters and height 4 meters. If water is being pumped into the tank at a rate of 2m3/min, find the rate at which the water level is rising when the water is 3m deep.

Solution :

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