Sagot :
Bonsoir,
2)
A = x + 1/x = (x × x)/x + 1/x = (x²+1)/x
B = 3 + 4/(x+1) = (3×(x+1)) + 4/(x+1) = (3x+3)/(x+1) + 4/(x+1)
= (3x+3+4)/(x+1)
= (3x+7)/(x+1)
A=X+1/X
=X×X /X+ 1/X
=X^2+1/X
B=3+4/X+1
=3(X+1) /X+1 + 4/X+1
=3X+3+4/ X+1
=(3X+7)/(X+1)
Bonsoir,
2)
A = x + 1/x = (x × x)/x + 1/x = (x²+1)/x
B = 3 + 4/(x+1) = (3×(x+1)) + 4/(x+1) = (3x+3)/(x+1) + 4/(x+1)
= (3x+3+4)/(x+1)
= (3x+7)/(x+1)
A=X+1/X
=X×X /X+ 1/X
=X^2+1/X
B=3+4/X+1
=3(X+1) /X+1 + 4/X+1
=3X+3+4/ X+1
=(3X+7)/(X+1)