If cosec18degree=secA, then the measure of A is?

• cosec18=secA,=>sin18=cosA=sin(90-72)=cos72
  so A=72 degree
• 14 years agoHelpfull: Yes(16) No(1)
• cosec 18=sec A
  thus cos A=sin 18
  sin (90-A)= sin 18
  90-A=18
  A=72
• 14 years agoHelpfull: Yes(6) No(0)
• cosec18=secA,so,sin18=cosA=sin(90-72)=cos72
  so A=72 definately
• 14 years agoHelpfull: Yes(4) No(0)
• cosec18=secA
  =>1/sin18=1/cosA
  =>cosA=sin18
  =>cosA=cos(90-18)
  =>cosA=cos72
  =>A=72
• 14 years agoHelpfull: Yes(4) No(0)
• 72degree
• 14 years agoHelpfull: Yes(3) No(0)