Find dy/dx for y=5x^3−2x^2+7x−15

'Find dy/dx' means it wants us to differentiate. The rules for this are multiply the coefficient (number before x) by the current power, then decrease the power by 1.In this example:5x3 would become 15x2, -2x2 becomes -4x, 7x becomes 7 as the 7x becomes 7x0 and x0=1, and the 15 becomes 0 as it has no power being multiplied by.Therefore...dy/dx = 15x2 - 4x + 7

GS

Related Maths A Level answers

All answers ▸

The circle C has centre (2,1) and radius 10. The point A(10,7) lies on the circle. Find the equation of the tangent to C at A and give it in the form 0 =ay + bx + c.


Using the substitution x = 2cosu, find the integral of dx/((x^2)(4-x^2)^1/2), evaluated between x=1 and x=sqrt(2).


What is differentiation?


find the diffrential of 3sin2x+4cos2x