# The term independent of x in (√(x/3)+√3/(2x2 ))10is:

1.  32

2.  1

3.  5/12

4.  10C1

4
Correct Answer :

5/12

Explanation :
No Explanation available for this question

# The coefficient of xk (0 ≤ k ≤ n) in the expansion of

1.  (n + 1)Ck+1

2.  nCk+1

3.  nCk

4.  (n +1)Ck

4
Correct Answer :

(n + 1)Ck+1

Explanation :
No Explanation available for this question

# The equation of the circle of radius 3 that lies in the fourth quadrant and touching the lines x = 0 and y=0 is:

1.  x2 + y2 =2a2

2.  x2 + y2 =4a2

3.  x2 + y2 =6a2

4.  x2 + y2 =8a2

4
Correct Answer :

x2 + y2 =2a2

Explanation :
No Explanation available for this question

# The first 3 terms in the expansion of (1 + x+x2)10 ( in the ascending powers of x) are

1.  1, 5x, 10x2

2.  1, 10x, 75cc

3.  1,10x, 65x2

4.  1,10x, 55x2

4
Correct Answer :

1,10x, 55x2

Explanation :
No Explanation available for this question

# If n ≥ 2, then 3.C0 – 5.C1 + 7.C2 – ……+(-1)n(2n +3).Cn=

1.  1

2.  -3

3.  3

4.  0

4
Correct Answer :

0

Explanation :
No Explanation available for this question

# The angle between the circles x2 + y2 – 4x – 6y – 3=0 and x2 + y2 + 8x – 4y + 11=0 is:

1.  π/2

2.  π/4

3.  π/3

4.  π/12

4
Correct Answer :

π/3

Explanation :
No Explanation available for this question

# if the points (0, 0), (2, 0), (0, 4),(1, k) are concyclic then k2-4k=

1.  -3

2.  0

3.  1

4.  -1

4
Correct Answer :

1

Explanation :
No Explanation available for this question

# The power of the centre of x2 + y2 – 8x + 4y – 10=0 with respect to 5x2 + 5y2 +4x + 2y – 1=0 is

1.  119/10

2.  111/5

3.  119/2

4.  119

4
Correct Answer :

111/5

Explanation :
No Explanation available for this question

# If (0, 0) is one limiting point of the coaxial system radical axis x + y=1, then the other limiting point is:

1.  (-1, 1)

2.  (1, -1)

3.  (-1, -1)

4.  (1, 1)

4
Correct Answer :

(1, 1)

Explanation :
No Explanation available for this question

# If c2 = a2(1+m2) and the line y=mx + c intersects the circle x2 + y2 =4a2 then the length of the chord

1.  (2√3)a

2.  2√3

3.  (√3)a

4.  2a

4
Correct Answer :

(2√3)a

Explanation :
No Explanation available for this question

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