Question 740602
{{{2sin(x) -1=csc (x)}}}
{{{2sin(x) -1=1/sin (x)}}}
{{{sin(x)*(2sin(x)-1) =(1/sin (x)) *sin (x)}}}
2sinē(x)-sin (x)=1
2sinē(x)-sin (x)-1=0
2sinē(x)-2sin (x)+1sin (x)-1=0
{{{2sin(x)(sin(x)-1)}}} {{{+1(sin (x)-1)=0}}}
{{{2sin (x)+1=0}}}    {{{sin (x)-1=0}}}
{{{2sin (x)= -1}}}     {{{sin (x) = 1}}}
{{{sin (x)= -1/2}}}     {{{x = arcsin(1)}}}
{{{x= arcsin(-1/2)}}} {{{x = 90}}}
{{{x=210}}} 
also
{{{ x=330}}}