Use Separation of Variables to Solve the Initial Value Problem $\frac { d y } { d x } = y ^ { 3 } \cos x$

Essay

Use separation of variables to solve the initial value problem: $\frac { d y } { d x } = y ^ { 3 } \cos x$ , $y \left( \frac { \pi } { 6 } \right) = 1$