1. 0

2. 1/2

3. -1/2

4. 3/2

View Answer

Correct Answer :

3/2

Explanation :
No Explanation available for this question

dx is equal to

1. x

2. 1

3. 1/(1+x2)

4. -1/(1+x2)

View Answer

Correct Answer :

Explanation :
No Explanation available for this question

In a cube the percentage increases in side is1.The percentage increases in the volume of the cube is

1. 1/3

2. 1/2

3. 2

4. 3

View Answer

Correct Answer :

Explanation :
No Explanation available for this question

A cylindrical vessel of radius 0.5mts. is filled with oil at the rate of 0.25 π.c mts./minute. The rate, at which the surface of oil is increasing is

1. 1mts./min

2. 2 mts./min

3. 5 mts./min

4. 1.25 mts./min

View Answer

Correct Answer :

1mts./min

Explanation :
No Explanation available for this question

The equation of the tangent to the curve y = x3-2x+7 at the point (1,6) is

1. y=x+5

2. x+y=7

3. 2x+y=8

4. x+2y=13

View Answer

Correct Answer :

y=x+5

Explanation :
No Explanation available for this question

If the acute angle between the curves xy=2 and y2=4x is θ, then tan θ is equal to

1. 2

2. 3

3. 2/3

4. 1/3

View Answer

Correct Answer :

Explanation :
No Explanation available for this question

If x + y =12,then the minimum value of x2+y2 is

1. 72

2. 144

3. 48

4. 36

View Answer

Correct Answer :

Explanation :
No Explanation available for this question

If y = sin(7sin-1x),then (1-x2)y2-xy1 is equal to

1. -49y

2. -7y

3. 49y

4. 7y

View Answer

Correct Answer :

-49y

Explanation :
No Explanation available for this question

If z2 = (x1/2 + y1/2)/(x1/3 + y1/3), then x(∂z/∂x) + y(∂z/∂y) is :

1. 2/6

2. (2/3)z

3. (2/5)z

4. z/12

View Answer

Correct Answer :

z/12

Explanation :
No Explanation available for this question

If u = x + y and v = x2 – y2, thenis equal to :

1. u

2. v

3. -2u

4. u+v

View Answer

Correct Answer :

-2u

Explanation :
No Explanation available for this question

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