Respuesta :

we have

cosh(x)=25/7 and x>0

Remember that

[tex]\cos h^2(x)-\sinh ^2(x)=1[/tex]

substitute the given function

[tex](\frac{25}{7})^2-\sinh ^2(x)=1[/tex][tex]\sinh ^2(x)=\frac{625}{49}-1[/tex][tex]\sinh ^2(x)=\frac{576}{49}[/tex]

therefore

sinh(x)=24/7