Mark the tick against the correct answer in the following:
If tan-1 x + tan-1 3 = tan-1 8 then x = ?
Given: 
+
= 
To Find: The value of x
Here 
+
= 
can be written as
=
- 
Since we know that 
- 
= 
=
- 
= 
=
=
x = 
1
Mark the tick against the correct answer in the following:
If tan-1 x + tan-1 3 = tan-1 8 then x = ?
Given: + =
To Find: The value of x
Here + = can be written as
= -
Since we know that - =
= - =
=
=
x =