|
||||||||||||
|
||||||||||||
| ||||||||||||
|
Hi Anne, On both sides substitute sinx/cosx for tanx. Write sin2x as 2 sinx cosx and simplify the left side. Write back if you need more help, | ||||||||||||
|
||||||||||||
| Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. | ||||||||||||