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Va rog a) este cu E (x) am nevoie
Dau corona ​


Va Rog A Este Cu E X Am Nevoie Dau Corona class=

Răspuns :

Răspuns:

x-1/2 × [x+3/x+1 - x+1/x+4 × (2x+3/x-1 - 1)]

=x-1/2×(x+3/x+1 - x+1/x+4 × 2x+3-(x-1)/x-1)

=x-1/2×(x+3/x+1 - x+1/x+4 × 2x+3-x+1/x-1)

=x-1/2×(x+3/x+1 - (x+1)×1/x-1)

=x-1/2×(x+3/x+1-x+1/x-1)

=x-1/2×(x-1)(x+3)-(x+1)²/(x+1)(x-1)

=1/2 × x²+3x-x-3-(x+1)²/x+1

=1/2×x²+2x-3-(x+1)²/x+1

=x²+2x-3-(x+1)²/2(x+1)

=x²+2x-3-(x²+2x+1)/2x+1

=x²+2x-3-x²-2x-1/2(x+1)

= -4/(2x+1)

=-2/x+1