Question

Simplifique la siguiente expresión:

5/2{(1/2+4/5)(1/2-4/5)-(1/4-16/25)}+1

Alternativas:

A)3
B)2
C)4
D)1
E)6

Con desarrollo porfa

Answer 1

5/2{(1/2+4/5)(1/2-4/5)-(1/4-16/25)}+1

=5/2(13/10(1/2−4/5)−(1/4−16/25))+1

=5/2(13/10(−3/10)−(1/4−16/25))+1

=5/2(−39/100−(1/4−16/25))+1

=5/2(−39/100−−39/100)+1

=5/2(0)+1

=0+1

=1

Respuesta: D)1