For SL maths , do you find paper 1 -LRB- non-calculator -RRB- or paper 2 -LRB- calculator -RRB- harder ?
What is -LSB- math -RSB- x ^ 2 + \ frac -LCB- 1 -RCB- -LCB- x ^ 2 -RCB- -LSB- / math -RSB- , given -LSB- math -RSB- x + \ frac -LCB- 1 -RCB- -LCB- x -RCB- = 1 -LSB- / math -RSB- ?