so UE the DATton on in soo O a TT a 7a 12 so a 10 a3 o secx

so UE the DATton) on in soo, O a TT a -7a. +12 so a -10 (a-3) o secx secx 3 COS X suppose the terminal posot t ss on the unit cinde Eind the Pont determinece this Q has alrea been he but no one makes it clear. PueASE

Solution

You did all the steps perfectly

1/cosx=4 1/cosx=3

Cos x = 1/4 cos x= 1/3

x=cos^-11/4 x=cos^-11/3

x=cos^-1(1/4), 2pi -cos^-1(1/4) x=cos^-1(1/3),2pi - cos^-1(1/3)