Trigonometric Equation answers

TRIGONOMETICEQUATIONSANSWERS1.±57.7degrees,±122.3degrees2.-10.1degrees-169.9degrees3.38.2degrees141.8degrees4.-135degrees45degrees5.30degrees150degrees6.±131.8degrees0degrees7.±41.4degrees+360ndegrees8.-18degrees+360ndegrees9.45+180ndegrees-14+180ndegrees10.360n±60degrees(2n+1)180degrees11.Proofrequired12.Proofrequired13.Proofrequired14.Proofrequired15.Proofrequired16.Proofrequired17.Proofrequired18.Proofrequired19.Proofrequired20a.1251622yx20b.12222byax20c.y2(x2+4)=3620d.(x-1)2+(y-1)2=120e.(x-2)2+1=2)2(y20f.2)(xa+2)(by=121a.Tan2(x)21b.121c.Cosec(x)Sec(x)21d.Sec2(x)21e.Tan(x)22a.1312,51222b.544322c.257252422d0,0Straightline.