cot6+ tane Students were asked to simplify the expression {9 co . Two students' work is given. Student A Student B Step 1: c018 tanf) 1 + . + tanH cote cot Step1. tanG cote Step 2: 1+ tan!) 2 1 1+ tan 9 tanH Step 2' lane cow Step 3: 1 + tan29 2 Step 3: sec 9 Step 4: $6626 tan2 9 Step 4: cscz 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) Although 300\" is a special angle on the unit circle, Amanda wanted to determine its coordinates using the sum and difference formulas. Part A: Determine cos 300 using the cosine sum identity. Be sure to include all necessary work. (5 points) Part B: Determine sin 300 using the sine difference identity. Be sure to include all necessary work. (5 points)