Solve, for 360≤θ<720∘360 \leq \theta < 720^\circ360≤θ<720∘, the equation,
3cosθ=8tanθ 3 \cos \theta = 8 \tan \theta 3cosθ=8tanθThe first four positive solutions, in order of size, of the equation cos(2a+50)=0.7\cos(2a + 50) = 0.7cos(2a+50)=0.7 are a1,a2,a3 a_1, a_2, a_3\,a1,a2,a3 and a4a_4a4. To the nearest degree find the value of a4a_4a4.