A-Level Maths: G5-10 Differentiation: A Tricky Parametric Differentiation Problem

[skyeforster]

Eeeeh I got this right before attempting it. Fantastic video, and I managed to find a much faster way!

[akbarmuxammadaminov]

great Teacher, low your videos. Keep going

[AG-qlsy]

managed to get the same answer but unfortunately i wasted time doing it the long way which involved finding where the tangent intersects with x axis. then i did inverse tan of (O/A) using the calculated width of the right angle triangle (Opposite to feta) which i calculated to be (5ln10 - 6.411) divided by the height (Adjacent to feta) which we know is 101/5 .

just adding this comment because it might resonate more with others. yes its long but if it fits ur shoe then why not lol

[teyyascarr]

How do you know that where u = 10, thats exactly where the point (A, C) is? Is the origin to A, the same as u going from 1 to 10?

[account-xrcb]

Hi just wanted to find out if you cover partial derivatives at all or is this not in the A level specification?

[daniazehra]

why did you use degrees instead of radians? thought it was calculus so had to be in radians

[kaijss]

is this a past exam question? If it is how many marks was it? if it wasn't how many marks do you think it would be?

[AlEx-rokd]

why is it u=10 shouldnt it be u=5ln(10) ?