# The number of irrational terms in the expansion

1.  30

2.  33

3.  31

4.  29

4

33

Explanation :
No Explanation available for this question

1.  105

2.  91

3.  120

4.  15

4

120

Explanation :
No Explanation available for this question

# If x is very small,so that x4 and higher powers of x are neglected then √(x2+16)-√ (x2+9)=

1.  1+(x2/24)

2.  1-(x2/24)

3.  1+(x2/48)

4.  1-(x2/48)

4

1-(x2/24)

Explanation :
No Explanation available for this question

1.  √2

2.  2√2

3.  21/3

4.  √(2/3)

4

√2

Explanation :
No Explanation available for this question

1.  (3/2)n

2.  (2/3)n

3.  (4/3)n

4.  (3/4)n

4

(3/2)n

Explanation :
No Explanation available for this question

# The number of ways in which 7 persons can be arranged around a circle is

1.  360

2.  720

3.  5040

4.  1440

4

720

Explanation :
No Explanation available for this question

# The number of ways in which 5 men,5women and 12 children can sit around a circular table so that the children are always together is

1.  4!4!12!

2.  11!12!

3.  10!12!

4.  (12!)2

4

10!12!

Explanation :
No Explanation available for this question

# The number of ways of arranging the letters AAAAABBBCCCDEEF in a row ,if the letters C are separated from one another is

1.  (12!/5!3!2!)x13!

2.  (12!/5!3!2!)x13P3

3.  (12!/5!3!2!)x13C3

4.  a)15!/5!3!2!2!

4

(12!/5!3!2!)x13C3

Explanation :
No Explanation available for this question

1.  14C5

2.  18C5

3.  18C4

4.  19C4

4

18C4

Explanation :
No Explanation available for this question

1.  aα+bβ

2.  α2+β2=

3.  -2(aα+bβ)

4.  2(aα+bβ)

4