X Od K Wc Psehahpb My Additional Mathematics?

My additional mathematics? - x od k wc psehahpb

1. Dar y = x ^ 2 +3 x-5
a. the value of dy / dxwhen x = 2
b. press the approximate change in Y with respect to K, if changes in a 2 x 2 + k, where k is a low value.

2. Point A is on the curve y = (2x-1) ^ 2. It is normal, since the slope at A 1 / 2. Here you can find the coordinates of A.

3. Since y = 7x (x-3) to calculate
a. Optical density value of x when y is a minimum
b. the minimum value of Y.

3. Two variables X and Y are standing by the equation y = (3 / x) - 2x in context. Since then, growing at a constant rate of 5 units per second, find the rate of change of x, where x = 3

Show me the way thank you ^ ^ ^ ^