1.   e2

2.  e1/2

3.  e-1/2

4.  e1/3

View Answer  
4
Correct Answer :

e1/3


Explanation :
No Explanation available for this question

In ΔABC, r1+r2+r3-r =

1.  4R cos A

2.  4R cos B

3.  4R cos C

4.  4R

View Answer  
4
Correct Answer :

4R


Explanation :
No Explanation available for this question

In ΔABC, if a(b cos C + c cos B) =2ka2, then k =

1.  0

2.  1

3.  1/2

4.  2

View Answer  
4
Correct Answer :

1/2


Explanation :
No Explanation available for this question

1.  0

2.  1

3.  e

4.  1/e

View Answer  
4
Correct Answer :

1/e


Explanation :
No Explanation available for this question

In ΔABC, r+r2+r3-r1 =

1.  4R cos A

2.  4R cos B

3.  4R cos C

4.  4R

View Answer  
4
Correct Answer :

4R cos A


Explanation :
No Explanation available for this question

In ΔABC, r12+r22+r32+r2 =

1.  16R2-( a2+b2+c2)

2.  16R2-( a2+b2-c2)

3.  16R2-( a2-b2+c2)

4.  16R2-( a2-b2-c2)

View Answer  
4
Correct Answer :

16R2-( a2+b2+c2)


Explanation :
No Explanation available for this question

In ΔABC, if tan θ = tan,the

1.  (a-b) cos  sec θ

2.  (a+b) cos  sec θ

3.  (a-b) sin  tan θ

4.  (a+b) sin  tan θ

View Answer  
4
Correct Answer :

(a-b) cos  sec θ


Explanation :
No Explanation available for this question

In ΔABC, if tan () = k cot,then k

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

In ΔABC, if tan = tcot (), then

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

If the area of a triangle satisfies the relation Δ= a2 – (b-c)2, then tan (A/2) =

1.  1/4

2.  1/3

3.  1/2

4.  none

View Answer  
4
Correct Answer :

1/4


Explanation :
No Explanation available for this question
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