Question

DAU COROANA
VA ROG AM NEVOIE DE AJUTOR​

Answer 1

Explicație pas cu pas:

a=

$- 1 + ( - \frac{3}{4} )$

a=

$- 1 - \frac{3}{4}$

a=

$- \frac{7}{4}$

b=

$- 4 \frac{1}{5} + 4.1$

b=

$- \frac{21}{5} + \frac{41}{10}$

b=

$- \frac{1}{10}$

b =

$- 0.1$

sau b=

${ - 10}^{ - 1}$