here is what you have ..multiply top and bottom by to get which simplifies to ..and by cancelling the common factor of you get what you want
Could someone PLEASE help me with these!
1. Verify the identity: (sinx-2+1/sinx)/(sinx-1/sinx)=sinx-1/sinx+1
2.Verify the identity: (1/1-cosx)-(cosx/1+cosx)=2csc(squared)x-1
3.Verify the identity: 2cos4xsin2x=2sin3xcos3x-2cosxsinx