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
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