Câu 13: Nếu $\log 3=a$ thì $\log 9000$ bằng:

Question 1

C. $3+2a$

Answer

C. $3+2a$

Question 2

B. $3{{a}^{2}}$

Answer

B. $3{{a}^{2}}$

Question 3

A. ${{a}^{2}}+3$

Answer

A. ${{a}^{2}}+3$

Question 4

D. ${{a}^{2}}$

Answer

D. ${{a}^{2}}$

Câu hỏi: Câu 13: Nếu $\log 3=a$ thì $\log 9000$ bằng: