you get the pi/2 from the (sinx - 1) bracket, but in the end it doesnt matter since its undefined in the tan curve
oh well woops my bad LOL didnt bother checking like i usually do ^_^
school rank: 90 - 100
ext1 maths - 36/54
2unit maths 18/66
adv english 53/71
music 3/20
business 10/51
senior science 3/11
Will it make a difference if people ranked ~30 in english are only a few marks ahead of people in the ~50's?
for example:
Student 1: 14/20, 11/15 and 13/20...