Show that φ(u, v)=(7u+4,u−v,13u+v) parametrizes the plane 2x−y−z=8.then: (a) calculate tu , tv, and n(u,) find the area of s=φ(d), where d=(u, v): 0≤u≤5,0≤v≤6.(c) express f(x, y,z)=yz in terms of u and v and evaluate ∬sf(x, y,z)ds(a) tu= , tv= , n(u, v)=) area(s)=) ∬sf(x, y,z)ds=