1)f'(x)=3
2)f'(x)=2
3)f'(x)=2+9x^2-15x^4
4)f'(x)=-10x^(-6) -18x^5
5)f'(x)=2cosx-3sinx
6)f'(x)=6x^(-0,5) -1
7)f'(x)=4cosx+(4x+5)*(-sinx(
8)f'(x)=4*(2+3x)^3 * (2+3x)'=4*(2+3x)^3 * 3 = 12*(2+3x)^3
9)f'(x)=[ 3*(4-3x) - (2+3x)*(-3) ] / (4-3x)^2 = [12-9x+6+9x ] /(4-3x)^2 =
=18/(4-3x)^2
10)f'(x)= 2/cos^2 (2x ) +3