Terdapat barisan bilangan -56, -49, -42, p, -28. nilai p adalah

Jawaban:

• Barisan dan Deret

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-56, -49, -42, p, -28

a = -56

b = -49 – (-56)

b = -49 + 56

b = 7

p = U4

p = a + 3b

p = -56 + 3(7)

p = -56 + 21

p = -35

Jawaban:

B. -35

Penjelasan dengan langkah-langkah:

a = U1 = -56

b = U2-U1 = -49-(-56) = -49+56 = 7

U4 = p

Un = a+(n-1)b

U4 = -56+(4-1)7

= -56+3×7

= -56+21

= -35