Объяснение:
f(x)=(5x+2)/(4x-3)
f'(x)=[(5x+2)'(4x-3)-(5x+2)(4x-3)']/(4x-3)²=[5(4x-3)-(5x+2)4']/(4x-3)²=
=(20x-15-20x-8)/(4x-3)²=-23/(4x-3)²
Объяснение:
f(x)=(5x+2)/(4x-3)
f'(x)=[(5x+2)'(4x-3)-(5x+2)(4x-3)']/(4x-3)²=[5(4x-3)-(5x+2)4']/(4x-3)²=
=(20x-15-20x-8)/(4x-3)²=-23/(4x-3)²