Ответ:
Объяснение:
1) f'(x) = 2x²+x-1
f'(x) =0=2x²+x-1
D=1+8=9
x1= (-1+3)/4=0.5 x2=(-1-3)/4=-1
Критичнi точки х1=0.5 i х2=-1
2) f'(x)= ((x+5)²)' *(x-4)² + (x+5)² *((x-4)²)' =2(x+5)*(x-4)² +2(x-4)(x+5)²=
=2*(x+5)*(x-4)*(x-4+x+5)= 2(x+5)(x-4)(2x+1)
f'(x)=0= 2(x+5)(x-4)(2x+1) => x+5=0 U x-4=0 U 2x+1=0
x1=-5 , x2=4 x3=-0.5
Критичнi точки x1=-5 , x2=4 x3=-0.5
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Ответ:
Объяснение:
1) f'(x) = 2x²+x-1
f'(x) =0=2x²+x-1
D=1+8=9
x1= (-1+3)/4=0.5 x2=(-1-3)/4=-1
Критичнi точки х1=0.5 i х2=-1
2) f'(x)= ((x+5)²)' *(x-4)² + (x+5)² *((x-4)²)' =2(x+5)*(x-4)² +2(x-4)(x+5)²=
=2*(x+5)*(x-4)*(x-4+x+5)= 2(x+5)(x-4)(2x+1)
f'(x)=0= 2(x+5)(x-4)(2x+1) => x+5=0 U x-4=0 U 2x+1=0
x1=-5 , x2=4 x3=-0.5
Критичнi точки x1=-5 , x2=4 x3=-0.5