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For a sphere of radius 5 given in parametric form by a vector function r(ϕ,θ) = 5sin⁡(ϕ)cos⁡(θ)i + 5sin⁡(ϕ)sin⁡(θ)j + 5cos⁡(ϕ)k determine the unit normal vector n. n = 15 r(ϕ;θ) n = r(ϕ,θ) n = 5 r(ϕ,θ) n = 125 r(ϕ,θ)

For a sphere of radius 5 given in parametric form by a vector function r(ϕ,θ) = 5sin⁡(ϕ)cos⁡(θ)i + 5sin⁡(ϕ)sin⁡(θ)j + 5cos⁡(ϕ)k determine the unit normal vector n. n = 15 r(ϕ;θ) n = r(ϕ,θ) n = 5 r(ϕ,θ) n = 125 r(ϕ,θ)

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For a sphere of radius 5 given in parametric form by a vector function
r ( ϕ , θ ) = 5 sin ⁡ ( ϕ ) cos ⁡ ( θ ) i + 5 sin ⁡ ( ϕ ) sin ⁡ ( θ ) j + 5 cos ⁡ ( ϕ ) k
determine the unit normal vector n . n = 1 5 r ( ϕ ; θ ) n = r ( ϕ , θ ) n = 5 r ( ϕ , θ ) n = 1 25 r ( ϕ , θ )

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