y = 2/x^3 find and expression for dy/dx

y = 2 x-3 simpler to differentiate in this form dy/dx = (-3)(2 x-4) multiply by power out the front and subtract one from the powerdy/dx = -6/x4 simplified version of above equation

RB

Related Maths A Level answers

All answers ▸

Given that x = cot y, show that dy/dx = -1/(1+x^2)


why is sin(x) squared plus cos(x) squared 1?


The complex numbers Z and W are given by Z=3+3i and W=6-i. Giving your answers in the form of x+yi and showing how you clearly obtain them, find: i) 3Z-4W ii) Z*/W


Solve the equation: 5^(2x+1) = 7, giving your answer correct to four decimal places.