## Answers

Equation of the tangent plane for any Surface **S** by S_{1}=0 (substituting one time)

Equation of the tangent plane is

Normal Line is Perpendicular to the tangent plane(coefficents as dr's) and passing through the given point

Eqution of Normal line is

We were unable to transcribe this image

42 +91-9 = 0

We were unable to transcribe this image

6 - I 2 - 9 Y = 9 -4

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