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Ministerul Educaţiei, Cercetării şi Inovării 
Centrul Naţional pentru Curriculum şi Evaluare în Învăţământul Preuniversitar 
Soluţie 
1. 
 1 ⋅ 2 ⋅ ⋅ 99  = 1 
  
= −   
lg ... lg 2 
2 3 100 100 
. 
2. x < 3⇒−x + 3 − x + 4 =1⇒ x∈∅, x∈[3,4)⇒ x − 3 − x + 4 =1⇒ x∈[3,4) , 
x ≥ 4⇒ x − 3 + x − 4 =1⇒ x = 4 . Deci x∈[3,4] . 
3. log3 x = t , 
  x∈{9; 3} 
+ 1 = 5 ⇒ ∈ 1 
 2; 
 
⇒ t t 
2 2 
t 
4. Numărul cazurilor posibile 2010 : 2 =1005 . Numărul cazurilor favorabile 251. 
= ⇒ cos x = ⇒ 1 − sin x 
= ⇒ = 1 
. 
ctg 6 6 36 sin 
x x 
BACALAUREAT 2009-MATEMATICĂ - Proba D, tipul subiectului MT1, programa M1 
251 
1005 
p = . 
5. ( m − 2 )2 + ( −2 − m )2 = 4 .m∈{−2;2} . 
2 
6. 
2 
2 
sin x sin x 
37

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  • 1. Ministerul Educaţiei, Cercetării şi Inovării Centrul Naţional pentru Curriculum şi Evaluare în Învăţământul Preuniversitar Soluţie 1.  1 ⋅ 2 ⋅ ⋅ 99  = 1   = −   lg ... lg 2 2 3 100 100 . 2. x < 3⇒−x + 3 − x + 4 =1⇒ x∈∅, x∈[3,4)⇒ x − 3 − x + 4 =1⇒ x∈[3,4) , x ≥ 4⇒ x − 3 + x − 4 =1⇒ x = 4 . Deci x∈[3,4] . 3. log3 x = t ,   x∈{9; 3} + 1 = 5 ⇒ ∈ 1  2;  ⇒ t t 2 2 t 4. Numărul cazurilor posibile 2010 : 2 =1005 . Numărul cazurilor favorabile 251. = ⇒ cos x = ⇒ 1 − sin x = ⇒ = 1 . ctg 6 6 36 sin x x BACALAUREAT 2009-MATEMATICĂ - Proba D, tipul subiectului MT1, programa M1 251 1005 p = . 5. ( m − 2 )2 + ( −2 − m )2 = 4 .m∈{−2;2} . 2 6. 2 2 sin x sin x 37