Same Question, Different Mistake – Math Mistakes Skip to the content Search Math Mistakes Menu About Random Post Baldermath Complex Number Lessons Search Search for: Close search Close Menu About Random Post Baldermath Complex Number Lessons Categories Trig Identities Trigonometric Functions Same Question, Different Mistake Post author By mpershan Post date January 30, 2013 4 Comments on Same Question, Different Mistake Compare to this post. Are there any other mistakes that you would expect students to make on this problem? Thanks to Kristen Fouss for the submission. Share this: Email Print ← Canceling and Trig Identities → A Contest! 4 replies on “Same Question, Different Mistake” Joshua Zuckersays: January 30, 2013 at 1:03 pm 1 + tan^2 = sec^2, so taking the square root of both sides, 1 + tan = sec. crazedmummysays: February 1, 2013 at 10:22 pm then do your “cancel” and possibly and why not (kids, this is NOT CORRECT) My Friday latex workout/ Phew! crazedmummysays: February 1, 2013 at 10:24 pm Wah! then do your “cancel” and possibly and why not crazedmummysays: February 1, 2013 at 10:25 pm Help! What did I do wrong?? Comments are closed. RSS - Posts RSS - Comments This work is licensed under a Creative Commons Attribution 3.0 Unported License. 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