1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If fn (x) = log log log ..... log x ( logis repeated n-times ), then

1.   f n+1(x) + c

2.  ( f n+1(x) / (n+1)) + c

3.  n f n (x) + c

4.  ( f n (x) / n ) + c

4

<i>&nbsp;f </i><sub>n+1</sub>(x) + c <br>

Explanation :
No Explanation available for this question

1.  cot x/2

2.  1/2 tan x/2

3.  tan x/2

4.  2 tan x/2

4

tan x/2

Explanation :
No Explanation available for this question

1.  arithmetic progression

2.  geometric progression

3.  harmonic progression

4.  arithmetic - geometric progression

4

harmonic progression

Explanation :
No Explanation available for this question

# The area (in square units) of the region enclosed by the two circles x2 + y2 = 1 and ( x -1)2 + y2 = 1 is

1.  (π/3) - (√3/2)

2.  (2π/3) + (√3/2)

3.  (π/3) + (√3/2)

4.  (2π/3) - (√3/2)

4

(2π/3) - (√3/2)

Explanation :
No Explanation available for this question

# The values of a function f(x) at different values of x are as follows : x     :       0   &am

1.  50

2.  75

3.  62.5

4.  52.5

4

52.5

Explanation :
No Explanation available for this question

# The solution of tan (y)dy/dx = sin(x + y) + sin(x - y) is:

1.  sec y = -2cos x + c

2.  tan y = -2 cosx + c

3.  sec y = 2cos x + c

4.  sec2 y = -2cos x + c

4

sec y = -2cos x + c

Explanation :
No Explanation available for this question

# A family of curves has the differential equation (xy)dy/dx = 2y2 - x2. Then the family of curves is

1.  y2 = cx2 + x3

2.  y2 = x2 + cx4

3.  y2 = cx4 + x3

4.  y2 = x + cx4

4

y2 = x2 + cx4

Explanation :
No Explanation available for this question

# If f(0) = 0,  f(1) = 1, f(2) = 2 and f(x) = f( x - 2 ) + f(x - 3) for x=3,4,5,.......,

1.  12

2.  13

3.  14

4.  10

4

10

Explanation :
No Explanation available for this question

1.  9

2.  7

3.  3

4.  1

4