1. sin2(180°x)cosec(270°+x)+cos2(360°x)sec(180°x)sin2(180°−x)cosec(270°+x)+cos2(360°−x)sec(180°−x)

    where sec(x)=1cos(x)sec(x)=1cos(x) and cosec(x)=1sin(x)cosec(x)=1sin(x).





  1. sin2(180°x)cosec(270°+x)+cos2(360°x)sec(180°x)sin2(180°−x)cosec(270°+x)+cos2(360°−x)sec(180°−x)

where sec(x)=1cos(x)sec(x)=1cos(x) and cosec(x)=1sin(x)cosec(x)=1sin(x).