
Ecuatii exponentiale
Interactive Video
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Ovidiu Orita
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este regula generală pentru rezolvarea ecuațiilor exponențiale de forma a^f(x) = a^g(x)?
Egalăm bazele.
Egalăm exponenții.
Luăm logaritmul ambelor părți.
Egalăm ecuația cu zero.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este soluția ecuației 3^(2x+1) = 3^(-x^2)?
x = 1
x = 0
x = -1
x = 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este soluția ecuației (1/3)^(x-1) = sqrt(3)?
x = 1
x = 1/2
x = -1/2
x = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Când o ecuație exponențială de forma a^f(x) = b nu are soluții?
Când b > 0
Când b = 0
Când b < 0
Când a = 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este soluția ecuației 2^(x+3) = 16?
x = 1
x = 2
x = 3
x = 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum se exprimă soluția ecuației 2^x = 5?
x = 5/2
x = log_2(5)
x = log_5(2)
x = 2^5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum se rezolvă o ecuație exponențială de forma αa^(2f(x)) + βa^f(x) + γ = 0?
Prin logaritmare directă
Prin substituție, obținând o ecuație de gradul II
Prin împărțire la a^f(x)
Prin ridicare la putere
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