I can't seem to do (a)(ii) of this question, there are probably two ways to do it but i get stuck using my way.
Given find the value of E and the value of where R>0 and 0<
[I got R = 5 and [tex]\alpha=0.6435 rads which is right]
Hence ind all values between 0 and 2 satisfying
[i also got this right its 1.8 and 5.77 rads]
i expanded again and got 5cos( but i dont know where to go from here,,,ive come across a similar scenario before and cant remember what I did, If anybody could help that'd be great, thnx