CRICRIPALO
Answered

ce calcul est il bon? (1/4x-1)*(1/4x-1)*pi=
1/16xau carre * pi

Sagot :

(1/4x-1)*(1/4x-1)*pi= (1/16x au carré -1/4x-1/4x +1)*pi = (1/16x au carré -2/4x+1)*pi = (1/16x au carré -1/2x+1)*pi 
A=(1/4x-1)*(1/4x-1)*pi
B=(1/4x-1)²
  =(1/4x)²-2*1/4x+1²
  =1/16x²-1/2x+1
A=B*pi
A=(1/16x²-1/2x+1)*pi