ALGEBR , clasa a IX - a

34Culegere de probleme

36Culegere de probleme

Algebr IX37

AL - IX. 108 Fie

i

Atunci este :

a)

b)

c)

d)

e)

f)

AL - IX. 109 Fie ;

S se determine inversa acestei funcii.

a)

b)

c)

d)

e)

f) funcia nu poate fi inversabil

AL - IX. 110 S se precizeze care din rspunsurile de mai jos este corect pentru funcia ,

a) f nu este inversabil;

b) f este inversabil i

c) f este inversabil i

d) f este inversabil i

e) f este inversabil i

f) f este inversabil i

AL - IX.111 Determinai valorile lui pentru care funcia

este inversabil i determinai inversa ei.

a) b)

c) d)

e)

f)

AL - IX.112 S se aleag un interval maximal astfel nct pentru , s existe .

S se precizeze dac este strict cresctoare sau descresctoare.

a) ; strict descresctoare;

b) strict cresctoare

c) strict descresctoare

d) strict cresctoare

e) strict descresctoare

f) strict cresctoare

AL - IX.113 S se determine astfel nct funcia s fie strict descresctoare pe R.

a)

b)

c)

d)

e)

f)

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