Hi guys,

I am a bit stuck on a certain part of a maths problem. I've done (a) and (b) already but I can't seem to get(c)which involves proving.

Thanks in advance :D

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- May 12th 2013, 10:45 PMxfallingstarCalculus and proving inequalities
Hi guys,

I am a bit stuck on a certain part of a maths problem. I've done (a) and (b) already but I can't seem to get**(c)**which involves proving.

Thanks in advance :D - May 13th 2013, 02:43 AMProve ItRe: Calculus and proving inequalities
And what did you get for a) and b) ?

- May 13th 2013, 05:16 AMxfallingstarRe: Calculus and proving inequalities
Basically I proved the equations shown in a) and b).

a) is easy, just use speed = distance/time and sub in the values.

for b) i differentiated T(x) and then subbed x into T(x) to get the equation shown in b).

If you want me to elaborate further, I guess I can take a picture of my working out to show you :/