HSC Stuff > HSC Mathematics Advanced
Locus and parabola
vyca:
Should I be memorising all the different formula's and knowing letter is the vertex, directrix etc.?
RuiAce:
--- Quote from: vyca on September 26, 2016, 12:47:45 pm ---Should I be memorising all the different formula's and knowing letter is the vertex, directrix etc.?
--- End quote ---
After you work through the PS=PM derivation, yes. And they are mentioned on your reference sheet.
You should try to figure out why the formulae are true as well.
vyca:
--- Quote from: RuiAce on September 26, 2016, 01:19:16 pm ---After you work through the PS=PM derivation, yes. And they are mentioned on your reference sheet.
You should try to figure out why the formulae are true as well.
--- End quote ---
Is that all there is to Parabola & locus, the PS=PM derivation and the formula's?
RuiAce:
--- Quote from: vyca on September 26, 2016, 01:51:29 pm ---Is that all there is to Parabola & locus, the PS=PM derivation and the formula's?
--- End quote ---
PS=PM isn't restricted to the parabola - it can be the circle or a straight line as well. But yes that's basically it to the topic.
vyca:
--- Quote from: RuiAce on September 26, 2016, 02:00:35 pm ---PS=PM isn't restricted to the parabola - it can be the circle or a straight line as well. But yes that's basically it to the topic.
--- End quote ---
Thankyou RuiAce for your help!
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