Determine whether the vectors are orthogonal. (1, 12) , ( 12, -1) Are the vectors orthogonal? O No O YesFind the horizontal component, a, of vector u. The horizontal component of u is D. (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) Write the complex number in trigonometric form r(cos 9 + isin B), with 6 in the interval [0,360). - 2 - 2i E> -2-2i=| (cos +isin ) (Type the value for r as an exact answer, using radicals as needed. Type the value for B as an integer or decimal rounded to the nearest tenth as needed.) Simplify. (-2 +7i)(-4 +4i) (2+7i)(-4+4i)=|:| (Simplify your answer. Type your answer in the form a + bi.) Find the angle between 4i - j and j. The angle between 4i - j and j is O (Round to the nearest tenth as needed.)