Win26_MATH005C_11757 Final Exam

Consider the polar to cartesian coordinate transformation 𝑥 = 𝑟 cos ⁡ 𝜃 and 𝑦 = 𝑟 sin ⁡ 𝜃 the Jacobian for this would be    1) 𝑟 2) 𝑟 2 3) 𝑟 2 sin ⁡ 𝜃 4) 𝑟 sin ⁡ 𝜃 cos ⁡ 𝜃