In ΔABC, ∑a(sin B –sin C) =

1.  0

2.  1

3.  2

4.  3

4

0

Explanation :
No Explanation available for this question

If the area of the triangle whose vertices are (b,c) (c,a) (a,b) is P then the area of the triangle whose vertices (ac-b2,ab-c2) (ab-c2,bc-a2) and (bc-a2,ac-b2) is

1.  (a+b+c)2

2.  p(a+b+c)

3.  p(a+b+c)2

4.  none

4

p(a+b+c)2

Explanation :
No Explanation available for this question

If G is the centroid of ABC and if area of ?AGB is 5sq.unit. then the area of ?ABC is

1.  20 sq.unit

2.  10 sq.unit

3.  15 sq.unit

4.  25 sq.unit

4

15 sq.unit

Explanation :
No Explanation available for this question

In ΔABC, ∑a.sin (B-C)=

1.  0

2.  1

3.  2

4.  3

4

0

Explanation :
No Explanation available for this question

If the centroid of a triangle is (1,4) and two of its vertices are (4,-3), )-9,7) , then the area of the triangle is

1.  180/3 sq.unit

2.  183/2 sq.unit

3.  174/3 sq.unit

4.  197/2 sq.unit

4

183/2 sq.unit

Explanation :
No Explanation available for this question

In ΔABC, ∑a3sin (B-C)=

1.  0

2.  1

3.  2

4.  3

4

0

Explanation :
No Explanation available for this question

In ΔABC, ∑a3cos (B-C)=

1.  0

2.  abc

3.  3abc

4.  1

4

3abc

Explanation :
No Explanation available for this question

If G is the centroid of the triangle formed by A(6,1), B(3,5), C(-1,-1), then the area of GAB is

1.  19/3 sq.unit

2.  13/2 sq.unit

3.  17/3 sq.unit

4.  17/2 sq.unit

4

17/3 sq.unit

Explanation :
No Explanation available for this question

P(3,1), Q(6,5) and R(x,y) form a triangle where

1.  0

2.  1

3.  2

4.  3

4

2

Explanation :
No Explanation available for this question

In a triangle ABC, (a2-b2-c2) tan A+ (a2-b2+c2) tan B is equal to

1.  (a2+b2-c2) tan C

2.  (a2+b2+c2) tan C

3.  (b2+c2-a2) tan C

4.  none

4