Math...

[quote=Pølsemanden]That feeling when the assignment says, thoroughly differentiate x^3 and u assume that u can save 3 lines at the bottom of the paper and that'll be fine. Oh my goose i hate differentiation.[/quote]

[quote=jhoijhoi]Do you understand how to do it? It's really easy once you know how. dy/dx x^3 Take the 3 to the left. = 3x^_____ Now do the sum "3-1" because you've taken away one 3 from the power. = 3x^(3-1) = 3x^2 ------------- More examples: dy/dx 4x^2 = 2*4x^(2-1) = 8x Why? Take the 2 from the right, move it to the left and times it by the 4. 2-1 = 1. ie 8x^1 = 8x. dy/dx 2x^3 = 3*2x^(3-1) = 6x^2 Why? Take 3 from the right, move it to the left and times it by the 2. 3-1 = 2. -------------- Make sense? :/[/quote]

[quote=Pølsemanden]ohh yeah... that's easy... I do know that... the assignment was about differentialkvotienten(is the danish word for it.) /|=delta X^3 [u]/|X=f(x+/|X)-x [/u]/|Y=/|X Then it comes to step to with reduction which takes a hell-load of time >.<[/quote]

[quote=PotatisFarfar][embed=http://www.youtube.com/watch?v=gENVB6tjq_M][/quote]

[quote=jhoijhoi]Ew. Why make it more complicated than it is? I remember having to learn that. And then at the end of the year they were like, "BTW YOU CAN DO A SHORT CUT LIKE THIS" and I was like "OMG WHY THE HELL DID YOU MAKE US DO IT THE LONG WAY IF I COULD JUST DO IT IN MY HEAD THIS WAY!?!"[/quote]