Question

S1= 1 + 2 + 3 + 4 + 5 + ... + 71
S2 = 2 + 4 + 6 + ... + 48

Answer 1

Respuesta:

Explicación paso a paso:

S1= 1 + 2 + 3 + 4 + 5 + ... + 71

S1= [ (t1 + tn)/2 ] .n

S1= [ (1 + 71)/2 ] .71

S1= (72/2) .71

S1= 36. 71

S1= 2 556

S2= 2 + 4 + 6 + ... + 48

S2= [ (t1 + tn)/2 ] .n

S2= [ (2 + 48)/2 ] . 24

S2= (50/2) .24

S2= 25 .24

S2= 600