Done L'Hopital's Rule? Remember all the conditions and mention the correct one when you do the class test -> 2 marks.
Just use the rule without justifications -> -3.
Edit: Oh wait Algebra.. not calculus... hahaha
IN that case you guys should be up to determinant, right?
EDit2: Just read back my old notes... it appears you guys havn't even started matrices.... hm...
Parametric equations? easy, sub in 1 and lamdha and solve