Question: Express the unit vector ax in spherical components at the point: (a) r = 2, = 1 rad, = 0.8 rad; (b) x

Express the unit vector ax in spherical components at the point:

(a) r = 2, θ = 1 rad, ϕ = 0.8 rad;

(b) x = 3, y = 2, z = −1;

(c) ρ = 2.5, ϕ = 0.7 rad, z = 1.5.

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