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 ▸Find the values of x and y for which dy/dx = 0 in y= x^3 - 4x^2 - 3x +2
The curve C has equation 4x^2 – y^3 – 4xy + 2^y = 0 The point P with coordinates (–2, 4) lies on C . Find the exact value of dy/dx at the point P .
Differentiate 8x^4 + 2x^2 + 10
Use Simpson’s Rule with five ordinates to find an approximate value for the integral e^(x^2)dx between the values of 0 and 1