The Student Room Group

FP3 June 2013 Question 8

I am stuck with question 8 part c. I do not understand what they have done when they make x=0 then y=0 then z=0. It's really confusing could someone please help me.
Reply 1
Could one of you perhaps help me
Reply 2
Original post by Major-fury
Could one of you perhaps help me


Post a link to the question paper.
Reply 4
Original post by Zacken
Post a link to the question paper.


i understand way 2 and way 3 but way 1 i'm not too sure

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