Question: PROBLEM 1 Using the symbolic language of Matlab: Expand the function: A(x,y)=Sin(x+y)+Sin(xy)+Cos(x+y)+Cos(xy) 3x3,and3y3 Use the graphical function surf to plot the factored function A(x,y), Use

PROBLEM 1 Using the symbolic language of Matlab: Expand the function:

PROBLEM 1 Using the symbolic language of Matlab: Expand the function: A(x,y)=Sin(x+y)+Sin(xy)+Cos(x+y)+Cos(xy) 3x3,and3y3 Use the graphical function "surf" to plot the factored function A(x,y), Use the graphical function "contour" to plot the contours of the factored function A(x,y). PROBLEM 2 Using Matlab symbolic language, compute the following integrals: xx2+a2dx,0xexdx,0ex1xdx,0ex1x3dx PROBLEM 3 Solve and plot the following second-order differential equation: y+2y+y=0y(0)=1y(1)=31x5 Provide all Matlab programs for the three problems and their solutions

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