Seudónimo Seudónimo 03-11-2020 Mathematics contestada Please explain how you get the answer. 1. Tan(-20°)= ? For example: Tan(-20°)=? Has 4 choices which are: -tan 20° tan 20° tan (-160°) -tan 160° 2.cos(-49°)=? 3.sin(-150°)=? 4.sec(-121°)=? 5.cos(-170°)=? 6.tan(-163°)=? 7.csc(-112°)? 8.sin(-295°)=? 9.cos(-15°)=? 10. Tan(-216°)=?