Question

Testul 1 urgent dau coroană.

Answer 1

1.
1²⁹+0¹⁰+5⁰+2³=1+0+1+8=10

4²:2³+3⁵⁰ :3⁴⁹-25⁰+0²⁵= 2+3-1+1+0= 5

10*{4²*4⁶:4⁵-3*[7*7⁴:7³-(5¹⁰):5⁸-3]}= 10*[ 4³-3*(7²-5²-3)]= 10*[64-3*(49-25-3)]=
=10*(64-3*21)=10*(64-63)=10

2⁴-2³-2²-2¹-2⁰= 16-8-4-2-1= 1 Adevarat

2⁷*8²*4³= 2⁷* (2³)²* (2²)³=2⁷*2⁶*2⁶= 2⁷⁺⁶⁺⁶= 2¹⁹

3⁵  ;9²;   27³
⇒ 9²= (3²)²=3⁴  ;  27³=(3³)³= 3⁹
R:  9² ⇒ 3⁵⇒ 27³

 Ultima cifra a numarului  :  3²⁰⁰³

U (3²⁰⁰³)= U(3⁵⁰⁰)* U(3³)= U (3⁴)¹²⁵ *U(3³)= U(81¹²⁵* 27)= U(1*7)= U (7)