Is the following true or false? d3/dx3(xsin(x))=-xcos(x)-3sin(x)

Step-by-step explanation:

That is a true statement.

The first derivative is

The second derivative is

The third derivative is

If you don't know how to find a derivative at this point, you'll be in a lot of trouble when it comes to integration. I recommend learning these.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

well what did you do it matters what you did : )

step-by-step explanation: