Card 1 of 24
What is ddx(ex)\frac{d}{dx}(e^x)dxd(ex)?
A
20(ln3)35x20(\ln 3)3^{5x}20(ln3)35x
B
The chain rule multiplies by the inner derivative, ddx(kx)=k\frac{d}{dx}(kx)=kdxd(kx)=k.
C
exe^xex
D
For constant kkk, ddx(cos(kx))=−ksin(kx)\boxed{\frac{d}{dx}(\cos(kx))=-k\sin(kx)}dxd(cos(kx))=−ksin(kx).
Card 1 of 24
3.6.3 Differentiation (A-level only) Flashcards
24 flashcards on WJEC A Level Maths 3.6.3 Differentiation (A-level only): the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.