eliz10
05.09.2020 •
Mathematics
Verify by substitution whetherthe given functions are solutions of the given DE. Primes denote derivatives with respect to x.y!! +y′= cos 2x;y"= cosx+sinx,y # = cos 2x,y$ =sin 2x
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Ответ:
Complete Question
The complete question is shown on the first uploaded
Step-by-step explanation:
The differential equation given is
Let consider the first equation to substitute
So
So
This means that
is not a solution of the differential equation
Let consider the second equation to substitute
So
So
This means that
is not a solution of the differential equation
Let consider the third equation to substitute
So
So
This means that
is not a solution of the differential equation
Ответ:
b-1800=a
a) $1,710
b) $3,510