Jawabanmu

2014-09-05T22:56:09+07:00
1. d f(x)/dx = -10 x^4
2. dy/dx= 3 x^2
3. dy/dx= 7
4. dy/dx= 4+2 x^3
2014-09-05T22:57:23+07:00
1. f'(x)= -2 + dx
2. f'(y)= 3 + dx
3. f'(y)= 7 + dx
4.f (y)= 9/2 + dx