Question

Ajutați-mă vă rooog!!!! ​

Answer 1

Răspuns:

1

Explicație pas cu pas:

1+2+..+20=20*21/2=10*21=210

36210+2*3^210=36210(1+2) =3^210*3=3^(210+1)=3^211

3^211:3^211=1

Answer 2

Răspuns:

    1

Explicație pas cu pas:

    $\displaystyle\bf\\(3^{1+2+3+...+20}+2*3^{210}):3^{211}$

    $\displaystyle\bf\\1+2+3+...+20=20(20+1):2=10*21=210$

    $\displaystyle\bf\\(3^{210}+2*3^{210}):3^{211}$

    $\displaystyle\bf\\3^{210}+2*3^{210}=3^{210}(2+1)=3^{210}*3^{1}=3^{211}$

    $\displaystyle\bf\\3^{211}:3^{211}=1$