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:EmailPrint ← Canceling and Trig Identities → A Contest! 4 replies on “Same Question, Different Mistake” 1 + tan^2 = sec^2, so taking the square root of both sides, 1 + tan = sec. then do your “cancel” and possibly and why not (kids, this is NOT CORRECT) My Friday latex workout/ Phew! Wah! then do your “cancel” and possibly and why not Help! What did I do wrong?? Comments are closed.