Students were asked to simplify the expression sece cose Two students work is given sece Student A Step 1 sece cose Step 2 sece sece Step 1 cos8 1 1 cos8 Step 3 1 cos20 Student B Step 4 sin2e Step 2 Step 3 1 Cose sece cos 8 1 cos e cose sece sin e cos e Step 4 tan 8 All changes Part A Which student simplified the expression incorrectly Explain the errors that were made or the formulas that were misused 5 points Part B Complete the student s solution correctly beginning with the location of the error 5 points