(d^(4)y)/(dx^(4))+sin(y'':)=0

Find the order and degree (if defined) of the following differential equations. (d^4y)/(dx^4) + sin (y''') = 0

Determine order and degree (if defined) of differential equation: (d^4y)/dx^4 + sin(y'' ') = 0

Find the order and degree of the following differential equations.(i) (dy)/(dx)-sin^(2)y=0 (ii) (d^(4)y)/(dx^(4))+sin((d^(3)y)/(dx^(3)))=0

Find the order and degree, it defined of the differential equation (d^(4)y)/(dx^(4))+sin (d^(3)y)/(dx^(3))=0

Find the order and degree (if defined) of the equation: (d^(4)y)/(dx^(4))-sin((d^(3)y)/(dx^(3)))=0