نشد بقى على ال Differentiation and first derivative
1)Find the slope of the tangent to the curve of f(x) = 8x2 + 1 at each of the following points
2)A cube expands regularly such that it preserves its shape. Find the average rate of change in its total faces area as its edge length changes from 20 cm to 20.4 cm. Then calculate the rate of change of the volume of the cube when its edge length is 20 cm.
3)The length of a rectangular lamina is three times its width. The lamina expands such that it preserves its shape with the same ratio between its dimensions. Find the rate of change of its area when its width is 20 cm.
4)Find the rate of change of the function
