Cho dãy $\left(u_n\right)$:$u_1={\text{e}}^3$,$u_{n+1}=u_n^2$,$k\in {\mathbb{N}}^{*}$ thỏa mãn $u_1.u_2\mathrm{.\; .\; .}{u}_k={\text{e}}^{765}$. Giá trị của $k$ là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  I do not want to listen to you. I am tired ___________ your criticisms.
   

• Choose the best answer for the following sentence:

  True friendship will _____________ as long as our lives.
   

• Choose the best answer for the following sentence:

  He advised me ____________ the facts before I made a decision ____________ the job.
   

• Choose the best answer for the following sentence:

  They have _______________ they cannot find time _________________.
  
  

• Choose the best answer for the following sentence:

  There ___________ mutual understanding between friends.
  
  
  

• Choose the word that has the underlined part pronounced differently from the rest:

  machinery                 march                    cheerfully                  merchant

• Choose the best answer for the following sentence:

  The water was so polluted that the explorers could not drink it.

• Choose the best answer for the following sentence:

  His doctor advised him ____________, but he found it impossible ______________ his habit.
   

• Choose the best answer for the following sentence:

  Their company was made ___________ 100,000 USD in taxes.
   

• Choose the best answer for the following sentence:

  The Pikes has a painter ______________ all the windows of their house.