$\"\"$

\

The curve is $\"\"$ .

\

$\"\"$

\

Apply deriative on each side with respect to $\"\"$ .

\

$\"\"$

\

Derivative of hyperbolic function : $\"\"$ .

\

$\"\"$

\

The slope of the curve is $\"\"$ .

\

Therefore $\"\"$ .

\

Definition of hyperbolic trigonometry : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Hence $\"\"$ .

\

$\"\"$

\

$\"\"$

\

The function is $\"\"$ .

\

Substitute $\"\"$ in the above function.

\

$\"\"$

\

Definition of hyperbolic trigonometry : $\"\"$ .

\

Substitute $\"\"$ in the above equation.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Therefore the point is $\"\"$ .

\

$\"\"$

\

The point is $\"\"$ .