Given vector u, what is the magnitude, |u|, and directional angle, θ, in standard position?|u| = 5.3, θ = 126.9° |u| = 5.3, θ =143.1° |u| = 10, θ = 126.9° |u| = 10, θ = 143.1°

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y