1)
2)
f '(x) = (x²– 4 √x² +3)' =2х-4*2х/(2√х²)
f '(-1)=-2+8/(2√1)=2
f '(2) = 2*2-4*2*2/(2√4)=0
2)f '(x) =(√(x²–4x+3)²)'=2*(2х-4)*(х²-4х+3)/(2√(x²–4x+3)²)=(2х-4)/(√(x²–4x+3));
f '(-1) =(-2-4)*8/(√(1+4+3)²)=-6;
f '(2) =(4-4)*(-1)/(√4-8+3)²)=0
1)
2)
f '(x) = (x²– 4 √x² +3)' =2х-4*2х/(2√х²)
f '(-1)=-2+8/(2√1)=2
f '(2) = 2*2-4*2*2/(2√4)=0
2)f '(x) =(√(x²–4x+3)²)'=2*(2х-4)*(х²-4х+3)/(2√(x²–4x+3)²)=(2х-4)/(√(x²–4x+3));
f '(-1) =(-2-4)*8/(√(1+4+3)²)=-6;
f '(2) =(4-4)*(-1)/(√4-8+3)²)=0