Find all the second partial derivatives. t = e(⁻²ʳ) cos(θ)
a) tᵣr = -4e(⁻²ʳ) cos(θ)
b) tᵣθ = 2e(⁻²ʳ) sin(θ)
c) t θr = -2e(⁻²ʳ) sin(θ)
d) t θθ = -e(⁻²ʳ) cos(θ)