# If a+1/a +2 = 0, then the value of [a37 – 1/a100] is

1.  0

2.  -2

3.  1

4.  2

4

-2

Explanation :
No Explanation available for this question

# Two circles touch each other externally at point A and PQ is a direct common tangent which touches the circles at P and Q respectively. Then ∠PAQ =

1.  450

2.  900

3.  800

4.  1000

4

900

Explanation :
No Explanation available for this question

# The value of k for which the graphs of (Jc~ 1) x+y - 2 = 0 and (2 - /c) x-3y + 1=0 are, parallel is

1.  ½

2.  -1/2

3.  2

4.  -2

4

½

Explanation :
No Explanation available for this question

# The graphs of x + 2y = 3 and 3x - 2y = 1 meet the Y-axis at two points having distance

1.  8/3 units

2.  4/3 units

3.  1 unit

4.  2 units

4

2 units

Explanation :
No Explanation available for this question

# If x+ 1/16x +1, then the value of 64x3+ 1/ 64x3 is

1.  4

2.  52

3.  64

4.  76

4

52

Explanation :
No Explanation available for this question

# ABC is an isosceles triangle in which AB = AC. If D and E are the mid-points of AB andAC respectively. The point B,C, D, E are:

1.  collinear

2.  non-collinear

3.  concyclic

4.  None of these

4

concyclic

Explanation :
No Explanation available for this question

# If a, fa, c are three non-zero real numbers such that a + b + c = 0, and b2 not equal ca, then the value of a2 + b2 + c2/ b2- ca is

1.  3

2.  2

3.  0

4.  1

4

2

Explanation :
No Explanation available for this question

# If a4+ a2 b2 + b4 = 8 and a2 + ab+ b2 = 4, then the value of ab is

1.  -1

2.  0

3.  2

4.  1

4

1

Explanation :
No Explanation available for this question

# If a = 25, b =15, c = -10, then the value of a3 + b3 +c3 – 3abc/(a - b)2 + (b - c)2 + (c -a)2

1.  30 h

2.  -15

3.  -30

4.  15

4

15

Explanation :
No Explanation available for this question

1.  θ+Φ= 2Π

2.  θ+Φ= Π

3.  θ+Φ= Π/2

4.  θ-Φ= Π/3

4