1.   e2

2.  e1/2

3.  e-1/2

4.  e1/3

4

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

4

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

4

1/2

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  e

4.  1/e

4

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

4

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)

4

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

4

(a-b) cos  sec θ

Explanation :
No Explanation available for this question

# In ΔABC, if tan () = k cot,then k

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# In ΔABC, if tan = tcot (), then

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  1/4

2.  1/3

3.  1/2

4.  none

4