Differentiation a^x : Edexcel Core Maths C4 January 2011 Q2 : ExamSolutions

[ExamSolutions_Maths]

That is the rule for differentiating x^n. Here you have a constant say a to a variable power as I show in the right hand column.

[JohnSmith-ojjp]

At 1:50, is there a quick explanation to why you can't just differentiate this normally by bringing the t down and then the power being 't-1'?
Thanks,

[IceColdH]

Yeah the c3 paper was quite hard tbh, one question made the whole paper hard, but c4 is next week and because of the original paper being leaked in eygpt, a new backup paper is going to be sent, and i think the backup paper is going to be so hard

[ExamSolutions_Maths]

Sorry but no. If I do these are then available to students who have yet to do the exam in other countries in another time zone.

[toms]

why is differentiating e^x different from constant^x? aren't they both constants

[Piers]

Unofficial mark schemes are already available, very easily.

[adamplant]

When you said "what we got here" you sounded posh, like you have just come back from training the horses.