Question

Si: A= 10+10+ ... +10 90 B=7+7+...+7 30 C=(-3)+(-3)+...+(-3) 200 Halla A - B + C.​

Answer 1

Explicación paso a paso:

A = (10 + 10 + 10 +... + 10) 90 veces

A = 10(90) = 900

B = (7 + 7 + 7 +... + 7) 30 veces

B = 7(30) = 210

C = [(-3) + (-3) + (-3) +... + (-3)] 200 veces

C = (-3)(200) = - 600

Hallar A - B + C

900 - 210 - 600 = 90