Question

Va rog ajutati ma la functiile acestea dau coronita

Answer 1

Răspuns:

Explicație pas cu pas:

a)

f'(x)=2x-7=0     minim    x=7/2

f(7/2)=49/4-49/2+10  = (49-2x49-40)/4=-89/4=-22,25

b)f'(x)=2x+7      minim    x=-7/2

f(-7/2)=49/4+49/2-12=(49+2x49-48)/4=99/4=24,75

c) f'(x)=2x         minim x=0

f(0)==5             A (0,-5)

d) f'(x)=24x+31       mimin     x=-31/24

f(-31,24)=961/576+31x31/24-1=[961x3-576)/24=2307/24

e)f'(x)=2x-2       x=1  minim

f(1)=0       A(1,0)