A-Level Maths: C3-07 Parametric Equations: Parametric to Cartesian

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Words cannot explain how you have made this so much easier thanks boss

onlyabdelix
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You literally simplify everything in maths to a level that I can properly understand without making me feel dumb. THANK YOU!

m.a.r.a
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“In some cases, algebra fails us”
That was weirdly daunting

hypedmaniac
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Such a good video. This helped much more than my teacher did, thank you.

chloeball
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I can’t help but notice that I feel like you have ignored the coefficients in front of the trig functions for questions 7 and 8. I am sure I am wrong but just curious as to how?

samh
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When I plot the parametric curve for question 3 on desmos, there are no values for x<-4. The line stops at (-4, 8). Does this mean that the line can not be represented by a cartesian equation??

invert
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For question 6 could you get y^2=x^2-4 for the Cartesian by squaring both of the parametric equations and subbing one into another 😊

everosie
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Qu2 will factorise nicely to y=(x-5)(x-6)(x-4)

duncblues