Answer:
It is only 1 and 2 that is the solution to the differential equation
Step-by-step explanation:
1. x''=- 2 Cos t+ 3 sin t and x=2 cos t -3 sin t the addition give 0
2. d^2y/dx^2=- Sin x +2 and y =Sin x +x^2 the addition =x^2+2
but
3. dx/dt= -2 Sin 2t and tx =t Cos 2t =t( 2Cos t - 2 Sin t) the addition it can't equal Sin 2t
(0,0) (2,4) (-2,-4)
n=0
Clear parenthesis w/ distribution:
3(-7n+1)=-21n+3
Move everything over to one side:
6n+3=-21n+3
6n=21n Subtract the 3 on the right.
-15n=0 Subtract the 21.
n=0 Divide the -15.