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Buna!
E(x)=(3/3x-4 - 1/3x+4 + 2x/9x²-16)÷ 4x+8/3x+4 - 1
a) Pentru ce valori ale lui x expresia E(x) nu este definita?
b) Calculati E(1)

ofer 50 de puncte!


Răspuns :

b)E(1)=(-3-1/7+2/9+16)÷4+8/7-1
E(1)=(-3-144/1008+224/1008+16128/1008)÷4+1/7
E(1)=(-3+16496/1008)÷4+1/7
E(1)=(-3024/1008+16496/1008)÷4+1/7
E(1)=13472/1008×1/4+1/7
E(1)=3368/1008+1/7
E(1)=421/126+1/7
E(1)=421/126+882/126
E(1)=1303/126
ASA RAMANE