1.  log|ex+2/ ex+1|+c

2.  log|ex-2/ ex+1|+c

3.  log|ex-2/ ex-1|+c

4.  none

4

log|ex-2/ ex-1|+c

Explanation :
No Explanation available for this question

1.  Tan-1(x3+1)+c

2.  1/3Tan-1(x3-1)+c

3.  1/3Tanh-1(x3+1)+c

4.  1/3Tan-1(x3+1)+c

4

1/3Tan-1(x3+1)+c

Explanation :
No Explanation available for this question

1.  2/√23 tan-1(4 sin x-3/√23)+c

2.  2/√23 tan-1(4 sin x+3/√23)+c

3.  2/√23 tan-1(4 sin x-3/√24)+c

4.  none

4

2/√23 tan-1(4 sin x-3/√23)+c

Explanation :
No Explanation available for this question

1.

2.

3.

4.  none

4

Explanation :
No Explanation available for this question

1.  log|cosx / 1+cos x|+c

2.  log|1+cosx / cos x|+c

3.  log|1-cosx / cos x|+c

4.  none

4

log|1+cosx / cos x|+c

Explanation :
No Explanation available for this question

# Ifthen k=

1.  2a2

2.  a2

3.  -2a

4.  2a

4

-2a

Explanation :
No Explanation available for this question

1.

2.

3.  2/3log|1-x3|+c

4.  2/3log(1/√(1-x3))+c

4

Explanation :
No Explanation available for this question

# Ifthen k=

1.  0

2.  -1

3.  1

4.  1/a

4

-1

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  log|x(x-cos x)|+c

2.  log |1-cosx/x|+c

3.  log|x/x-cos x|+c

4.  none

4