Differentiation 25 • Implicit - Exam Question • P2 Ex9 ExamQ • 🚀

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I’m in year 12 doing further maths, got my mock exam on Tuesday. Thank you so much for this video, you’re actually a godsend, and you remind me why I like maths so much :)

amylam
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hey bicen i mightve missed this in previous vids but could you briefly explain why we make the numerator or denominator = 0 depending if its parallel or perpindicular? Thanks

Karim-nidr
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I don't see this question in the mixed exercise? Is it in the old A2 book? Thanks for everything!

TheRealDY
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For part (c), how do we know for certain that the most northern point has a tangent parallel to x-axis (ie dy/dx=0)?

nevzys
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Hey sir quick question about the line if it was horizontal instead of vertical the numerator would be 0 right?

rayzino
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hi sir in an exam question would we always be shown either a graph with the asymptotes to show its parallel or either actually told in the question

ehehrrhr
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For part b could you have also made y the subject of the formula (instead of x) and then sub that y value into the first equation to get the coordinates of P?

samuelbrodie
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For part c, how do you know that is the most northern point to O?

toxins
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Hi sir, I don't understand why the gradient of P is undefined and not just 0? Why do we make the denominator equal to zero instead of the numerator?

mariamsafardiar