MEDIUM
JEE Main
IMPORTANT
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If the surface area of a cube is increasing at a rate of 3.6cm2/sec, retaining its shape; then the rate of change of its volume (in cm3/sec), when the length of a side of the cube is 10cm, is:

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Important Questions on Application of Derivatives

HARD
JEE Main
IMPORTANT
If the tangent to the curve y=ex at a point c, ec and the normal to the parabola y2=4x at the point 1, 2 intersect at the same point on the x-axis, then the value of c is .....
MEDIUM
JEE Main
IMPORTANT

The area (in sq. units) of the largest rectangle ABCD whose vertices A and B lie on the x-axis and vertices C and D lie on the parabola, y=x2-1 below the x-axis, is :

HARD
JEE Main
IMPORTANT
If x=1 is a critical point of the function f(x)=3x2+ax-2-aex, then 
HARD
JEE Main
IMPORTANT
Which of the following points lies on the tangent to the curve x4ey+2y+1=3 at the point (1,0)?
MEDIUM
JEE Main
IMPORTANT
If the lines x+y=a and x-y=b touch the curve y=x2-3x+2 at the points where the curve intersects the x-axis, then ab is equal to
MEDIUM
JEE Main
IMPORTANT
The position of a moving car at time t is given by f(t)=at2+bt+c, t>0, where a, b and c are real numbers greater than 1. Then the average speed of the car over the time interval t1,t2 is attained at the point:
HARD
JEE Main
IMPORTANT
Let AD and BC be two vertical poles at A and B respectively on a horizontal ground. If AD=8m, BC=11m, AB=10m; then the distance (in meters) of a point M lying in between  AB from the point A such that MD2+MC2 is minimums, is__
MEDIUM
JEE Main
IMPORTANT
The set of all real values λ for which the function fx=1-cos2x. λ+sin x, x -π2, π2, has exactly one maxima and exactly one minima, is :