# If =i+j+tk,=i+2j+3k,the values of 't'

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Two consecutive sides of a parallelogram are 4x + 5y = 0 and 7x + 2y = 0. If the equation to one diagonal is 11x  + 7y = 9, then the equation of the other diagonal is:

1.  x + 2y = 0

2.  2x + y = 0

3.  x - y =0

4.  none of these

4

x - y =0

Explanation :
No Explanation available for this question

# The centre of circle which touch the y-axis at (0, 3) and making an intercept of 2 units on the positive x-axis, is:

1.  (10, √3)

2.  (√3, 10)

3.  (√10, 3)

4.  (3, √10)

4

(&#8730;10, 3)

Explanation :
No Explanation available for this question

# If (mi, 1/mi), I=1,2,3,4 are concyclic points, then the value of m1m2m3m4 is:

1.  1

2.  -1

3.  0

4.  none of these

4

1

Explanation :
No Explanation available for this question

# From a point on the level ground, the angle of elevation of the top of a pole is 300 on moving 20 metres nearer, the angle of elevation is 450. Then the height of the pole (in metres), is:

1.  10(√3-l)

2.  10(√3 + l)

3.  15

4.  20

4

10(√3 + l)

Explanation :
No Explanation available for this question

# If the axes are rotated through an angle 450 in the positive direction without changing the origin, then the co-ordinates of the point (√2,4) in the old system are

1.  (1-2√2,1+2√2)

2.  (1+2√2,1-2√2)

3.  (2√2,√2)

4.  (√2,2)

4

(1-2√2,1+2√2)

Explanation :
No Explanation available for this question

# If a point (x, y) = (tan θ+sin θ,tan θ-sin θ),then the locus of (x, y) is

1.  (x2y)2/3 + (xy2)2/3 = 1

2.  x2 - y2 = 4xy

3.  x2 - y2 = 12xy

4.  (x2 - y2)2 = 16xy

4

(x2 - y2)2 = 16xy

Explanation :
No Explanation available for this question

# If the plane 7x +11y + 13z = 3003 meets the co-ordinate axes in A, B, C, then the centroid of the ΔABC is

1.  (143, 91, 77)

2.  (143, 77, 91)

3.  (91, 143, 77)

4.  (143, 66, 91)

4

(143, 91, 77)

Explanation :
No Explanation available for this question

# The probability of getting qualified in IITJEE and EAMCET by a student are respectively 1/5 and 3/5. The probability that the student gets qualified for at least one of these test, is

1.  3/25

2.  8/25

3.  17/25

4.  22/25

4

17/25

Explanation :
No Explanation available for this question

1.  0

2.

3.

4.

4