4.4
Solving Multi-step Trig equations involving identities, squaring both sides, factoring,quadratic equation, etc.
Example 1: http://youtu.be/kxnpRlANixA
Example 2: http://youtu.be/J3VEYAYjHQU
Example 3: http://youtu.be/-Hp7JfNckFM
Example 4: http://youtu.be/SRqk2CSI6L8
Example 5: http://youtu.be/YsiH57CG0lo
Example 6: http://youtu.be/rGjepQC73TY
Example 7: http://youtu.be/7-snzdKYswM
Example 8: http://youtu.be/ariSPbcLze4
Example 9: http://youtu.be/w-vlqOhyGoQ