1.  -1/2

2.  1/2

3.  1

4.  3/2

4

1/2

Explanation :
No Explanation available for this question

1.  0

2.  2

3.  3

4.  4

4

3

Explanation :
No Explanation available for this question

1.  -1

2.  0

3.  1

4.  2

4

-1

Explanation :
No Explanation available for this question

# If 2x2-3xy+y2+x+2y-8 = 0, then dy/dx =

1.  (3y-4x-1) / (2y-3x+2)

2.  (3y+4x+1) / (2y+3x+2)

3.  (3y-4x+1) / (2y-3x-2)

4.  (3y-4x+1) / (2y+3x+2)

4

(3y-4x-1) / (2y-3x+2)

Explanation :
No Explanation available for this question

# x = cos θ, y = sin 5θ  ==>(1-x2) (d2y/dx2)  - x(dy/dx) =

1.  -5y

2.  5y

3.  25y

4.  -25y

4

-25y

Explanation :
No Explanation available for this question

# The lengths of tangent, sub tangent, normal and subnormal for the curve y = x + x - 1 at (1,1) are A, B, C and D respectively, then their increasing order is

1.  B,D,A,C

2.  B,A,C,D

3.  A,B,C,D

4.  B,A,D,C

4

B,A,D,C

Explanation :
No Explanation available for this question

# The condition f(x) = x3 + px2 + qx + r (xЄR) to have no extreme value, is

1.  p2 <3q

2.  2p2 <q

3.  p2 <  q/4

4.  p2 > 3q

4

p<sup>2</sup> &lt;3q

Explanation :
No Explanation available for this question

# The circumference of a circle is measured as 56 cm with an error 0,02 cm. The percentage error in its area is

1.  1/7

2.  1/28

3.  1/14

4.  1/56

4

1/14

Explanation :
No Explanation available for this question

# Observe the statements given below : Assertion (A) : f (x) = xe-x has the maximum at x = 1Reason (R) :  f’(1)= 0 and f” (1) < 0 Which of the following is corr

1.  Both (A) and (R) are true and (R) is the correct reason for (A)

2.  Both (A) and (R) are true and (R) is not  the correct reason for (A)

3.  (A) is true, (R) is false

4.  (A) is false, (R) is true

4

Both (A) and (R) are true and (R) is the correct reason for (A)

Explanation :
No Explanation available for this question

1.  1

2.  2

3.  3

4.  4

4