In ΔABC, ∑a(sin B –sin C) =

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

15 sq.unit


Explanation :
No Explanation available for this question

In ΔABC, ∑a.sin (B-C)=

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

183/2 sq.unit


Explanation :
No Explanation available for this question

In ΔABC, ∑a3sin (B-C)=

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

0


Explanation :
No Explanation available for this question

In ΔABC, ∑a3cos (B-C)=

1.  0

2.  abc

3.  3abc

4.  1

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

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

View Answer  
4
Correct Answer :

none


Explanation :
No Explanation available for this question
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