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Differentiate cos(2x^3)/3x

Using quotient rule y = u/v - dy/dx = (v.du/dx - u.dv/dx)/v 2 .u = cos(2x 3 ) , a = 2x 3 . du/da = -sin(a), da/dx = 6x 2 . From chain rule, we know that du/dx = du/da . da/dx, so du/dx = -6x 2 sin(2x 3 ). We...
CW
Answered by Charlie W. • Maths tutor
10120 Views

Identify the various structures in a reflex arc in the context of a pin prick. What is the end response and why is this beneficial?

Stimulus --> receptor --> coordinator --> effector --> response. Pin prick --> skin receptors --> sensory neurone --> relay neurone --> motor neurone --> effector muscle --> con...
SP
Answered by Sai P. • Biology tutor
3092 Views

Differentiate x^2 ln(3x) with respect to x

This question requires the use of differentiation by product rule. First differentiate the first term, whilst keeping the second term the same, i.e. we get 2xln(3x). Secondly we keep the first term the same,...
RF
Answered by Ricky F. • Maths tutor
15141 Views

How do I know whether to use avoir or être in the passé composé?

The passé composé is the most common past tense in French and is used to talk about a completed action in the past. The passé composé is made up of two parts - the present tense of either avoir or être (the ...
AH
Answered by Abigail H. • French tutor
4697 Views

How are earthquakes caused at destructive plate boundaries?

When a denser, oceanic plate subducts (moves under) a less dense continental plate, the plates can 'lock' and experience friction because of the opposing movement of the plates - we call this area a 'subduct...
JL
Answered by Justin L. • Geography tutor
8088 Views