1.  3 - √2

2.  √3 - 2

3.  √2 - 1

4.  √2 - 2

4

√2 - 1

Explanation :
No Explanation available for this question

# If In = d n (x n logx)/dx n ,then I n - n I n-1 is equal to

1.  n

2.  n-1

3.  n!

4.  (n-1)!

4

(n-1)!

Explanation :
No Explanation available for this question

# If y = A cosnx + B sinnx, then y2+n2y is equal to:

1.  0

2.  1

3.  y

4.  -1

4

0

Explanation :
No Explanation available for this question

# The number of ways in which 5 boys and 4 girls sit around a circular tables. So that no two girls sit together is:

1.  5! 4!

2.  3! 3!

3.  5!

4.  4!

4

5! 4!

Explanation :
No Explanation available for this question

# Using the digits 0, 2, 4, 6, 8 not more than once in any number, the number of 5 digited numbers that can be formed, is:

1.  16

2.  24

3.  96

4.  120

4

96

Explanation :
No Explanation available for this question

1.  √2

2.  1/√2

3.  √3

4.  1/√3

4

√2

Explanation :
No Explanation available for this question

# The co-efficient of x4 in the expansion of (1-3x)2/(1-2x) is equal to:

1.  1

2.  2

3.  3

4.  4

4

4

Explanation :
No Explanation available for this question

# If (1+x)n = C0+C1x+C2x2+......+Cnxn, then C0

1.  2n + n.2n-1

2.  2n-1 + n.2n

3.  2n + (n+1)2n

4.  2n-1 + (n-1)2n

4

2<sup>n</sup> + n.2<sup>n-1</sup>

Explanation :
No Explanation available for this question

# then k is equal to

1.  -3

2.  -2

3.  2

4.  3

4

-3

Explanation :
No Explanation available for this question

1.  e

2.  e-1

3.  e-2

4.  e-3

4