Question

Find an equation of the tangent plane to the parametric surface r(s,t)=4scos(t)i+3ssin(t)j+5tk at when s=4 and  t=3π/4...

Find an equation of the tangent plane to the parametric surface

r(s,t)=4scos(t)i+3ssin(t)j+5tk


at when s=4 and  t=3π/4

z=

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