Question

tanh-¹x+ tanh-¹y=tanh-¹x+y÷1+xy
​

Answer 1

Answer:

Answer

We have,

x=tanh

−1

y ………..(1)

We know that,

tanh

−1

y=

2

1

log(

1−y

1+y

)

then,

2tanh

−1

y=log(

1−y

1+y

)

log(

1−y

1+y

)=2tanh

−1

y

using equation (1) and we get,

log(

1−y

1+y

)=2x

1−y

1+y

=e

2x

Hence, this is the answer.