Question

57/sin(-27pi/4)cos(25pi/4)

Answer 1

Sin(-27pi/4)=sin(-3pi/4)=-sin(3pi/4)=-$\sqrt{2}/2$
cos(25pi/4)=cos(pi/4)=$\sqrt{2}/2$
57÷(-$\sqrt{2}/2$*$\sqrt{2}/2$)=-104