Math Problem Statement

carilah sudut lancip antara permukaan-permukaan xy^2z=3x+z^2 dan 3x^2-y^2+2z=1 di titik (1,-2,1)

Solution

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Math Problem Analysis

Mathematical Concepts

Multivariable Calculus
Gradient Vectors
Surface Geometry
Angle Between Surfaces

Formulas

Gradient of f(x, y, z): ∇f = (∂f/∂x, ∂f/∂y, ∂f/∂z)
Gradient of g(x, y, z): ∇g = (∂g/∂x, ∂g/∂y, ∂g/∂z)
Angle between vectors: cos(θ) = (∇f ⋅ ∇g) / (|∇f| * |∇g|)

Theorems

Gradient vector perpendicularity to surfaces
Dot product for finding angles between vectors

Suitable Grade Level

Undergraduate - Multivariable Calculus