Note WeBWorK will interpret acos ( x ) as cos 1 ( x ) , so in order to write a times cos ( x
Note WeBWorK will interpret acosx as cosx so in order to write a times cosx you need to type acosx or put a space between them.The general solution of the homogeneous differential equation
yy
can be written as
ycacosxbsinx
where a b are arbitrary constants and
ypex
is a particular solution of the nonhomogeneous equation
yyex
By superposition, the general solution of the equation yyex is yycyp so
y
NOTE: you must use a b for the arbitrary constants.Find the solution satisfying the initial conditions
yy
y
The fundamental theorem for linear IVPs shows that this solution is the unique solution to the IVP on the interval The Wronskian W of the fundamental set of solutions cosx and sinx of the homogeneous equation is