# The pressure P and the volume v of a gas are connected by the relation pv1/4 =a constant. The percentage increase in the pressure corresponding to a diminutions of ½% in the volume is

1.  ½

2.   ¼

3.  4

4.  1/8

4

1/8

Explanation :
No Explanation available for this question

# The gradient of the curve y=x3-3x2-2x+7 at (1, 3) is

1.  3

2.   -4

3.  -5

4.   7

4

-5

Explanation :
No Explanation available for this question

# The slope of the tangent to the curve y=6+x-x2 at (2, 4) is

1.  10

2.  ½

3.  -3

4.  1/√2

4

-3

Explanation :
No Explanation available for this question

# The slope of the tangent to the curve y=sin x at x=π/4 is

1.   0

2.  1

3.  -1

4.  1/√2

4

1/√2

Explanation :
No Explanation available for this question

# The slope of the tangent to the curve x2+y2 =4 at (√2, √2) is

1.  0

2.  1

3.   -1

4.  1/√2

4

-1

Explanation :
No Explanation available for this question

# The slope of the tangent to the curve x=at3, y=at4 at t= 1 is

1.  -1/2

2.  -2/3

3.  ¼

4.  4/3

4

4/3

Explanation :
No Explanation available for this question

# Slope of the normal to the curve y=cos 2x at x=π/6 is

1.  -1/2

2.  1/√3

3.  ¾

4.  4/3

4

1/√3

Explanation :
No Explanation available for this question

# Slope of the normal to the curve xy=12 at (3, 4) is

1.  -1/2

2.  1/√3

3.  ¾

4.  4/3

4

¾

Explanation :
No Explanation available for this question

# Slope of the normal to the curve x3+y3=6xy at (3, 3) is

1.  0

2.  1

3.  -1

4.  1/√2

4

1

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  -1

4.  1/√2

4