Vector or scalar

  Find the specified vector or scalar. 1. u = <12, 3>, v = <-5, -3>; Find u + v. 2. u = <11, 4> and v = <7, -8>; Find u ∙ v. Find the angle between the given vectors. Round to the nearest tenth of a degree. 3. u = <7, 2>, v = <8, -4> Solve the equation on the interval [0˚, 360˚). 4. (tan x - 1) (cos x - 2) = 0 5. sin⁡(2x)-cos⁡(x)=-sin(2x)