# If f={(a, 0), (b, 2), (c, -3)}, g={(a, -1), (b, 1), (c, 2)} then 2f-3g=

1.  {(a, -1), (b, 3), (c, -1)}

2.  {(a, 1), (b, 1), (c, -5)}

3.  {(a, -1), (b, -1), (c, 5)}

4.  {(a, 3), (b, 1), (c, -12)}

4

{(a, 3), (b, 1), (c, -12)}

Explanation :
No Explanation available for this question

1.  2/3

2.  3/2

3.  3

4.  1/2

4

3/2

Explanation :
No Explanation available for this question

# In a right angled ΔABC , sin2 A+sin2 B+sin2 C=

1.  0

2.  1

3.  -1

4.  2

4

2

Explanation :
No Explanation available for this question

# If I1,I2,I3 are excentres of the triangle with vertices (0,0), (5,12), (16,12) then the orthocentre of I1,I2,I3 is

1.  (6,9)

2.  (7,9)

3.  (6,7)

4.  (9,7)

4

(7,9)

Explanation :
No Explanation available for this question

# If f={(a, 1), (b, -2), (c, 3)}, g={(a, -2), (b, 0), (c, 1)} then f2+g2=

1.  {(a, -1), (b, -2), (c, 4)}

2.  {(a, 3), (b, -2), (c, 2)}

3.  {(a, -4), (b, -4), (c, 9)}

4.  {(a, 5), (b, 4), (c, 10)}

4

{(a, 5), (b, 4), (c, 10)}

Explanation :
No Explanation available for this question

# If f=={(a, 0), (b, -2), (c, 3)}, g=={(a, -2), (b, 0), (c, 1)} then f/g

1.  {(a, -1), (b, -2), (c, 4)}

2.  {(a, 3), (b, -2), (c, 2)}

3.  {(a, 0), (c, 3)}

4.  does not exist

4

{(a, 0), (c, 3)}

Explanation :
No Explanation available for this question

# If A=(2,3), B=(-2,-5),C=(-4,6) and if P is a point on BC such that AP bisects the angle A, then P=

1.  (-22/7,9/7)

2.  (22/7,9/7)

3.  (22/7,-9/7)

4.  (-22/7,-9/7)

4

(-22/7,9/7)

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  ∞

4.  -∞

4

Explanation :
No Explanation available for this question

# If twice the square of the radius of a circle is equal to half the sum of the square of the sides of inscribed triangle ABC, then sin2 A+ sin2 B+ sin2 C=

1.  1

2.  2

3.  4

4.  8

4

1

Explanation :
No Explanation available for this question

1.  1/12

2.  25/12

3.  5/12

4.  13/12

4