# Cos-1(3/5) +Cos-1(12/13) =

1.  Cos-1(16/65)

2.  Cos-1(33/65)

3.  Cos-1(77/85)

4.  Cos-1(12/13)

4

Cos-1(16/65)

Explanation :
No Explanation available for this question

# Sin-1(4/5)-Sin-1(5/13) =

1.  Sin-1(56/65)

2.  Sin-1(33/65)

3.  Sin-1(77/85)

4.  Sin-1(3/5)

4

Sin-1(33/65)

Explanation :
No Explanation available for this question

# Cot-1(4/3)-Cos-1(15/8) =

1.  Cot-1(16/65)

2.  Cot-1(84/65)

3.  Cot-1(84/85)

4.  Cot-1(84/13

4

Cot-1(84/13

Explanation :
No Explanation available for this question

# Sin-1(24/25) +Tan-1(5/12) =

1.  Tan-1(27/11)

2.  Tan-1(16/63)

3.  Sin-1(16/65)

4.  Cos-1(-36/325)

4

Cos-1(-36/325)

Explanation :
No Explanation available for this question

# Sin-1(3/5) - Cos-1(12/13) =

1.  Tan-1(27/11)

2.  Tan-1(16/65)

3.  3Sin-1(16/65)

4.  Sin-1(3/5)

4

3Sin-1(16/65)

Explanation :
No Explanation available for this question

# Sin-1(3/5) - Cos-1(12/13) =

1.  Tan-1(27/11)

2.  Tan-1(16/63)

3.  Sin-1(16/65)

4.  Sin-1(3/5)

4

Tan-1(27/11)

Explanation :
No Explanation available for this question

# Sin-1(-√2/2) + Cos-1(-1/2)-Tan-1(-√3)-Cot-1(1/√3) =

1.  5π/6

2.  5π/12

3.  7π/12

4.  7π/6

4

5π/12

Explanation :
No Explanation available for this question

# Tan-1 2+ Tan-1 3 =

1.  3π/4

2.  π/2

3.  π/4

4.   π

4

3π/4

Explanation :
No Explanation available for this question

# If x>0, y>0 and x>y, then Tan-1(x/y) +Tan-1[(x+y)/(x-y)] is equal to

1.   –π/4

2.    π/4

3.  3π/4

4.  none of these

4

3π/4

Explanation :
No Explanation available for this question

# If,then x=

1.  any real numbers between 0,7

2.  any real numbers between 2,9

3.  any real numbers between 2,7

4.  any real numbers between 0,9

4