100 Ways to Love Your Husband/Wife Bundle

100 Ways to Love Your Husband/Wife Bundle

Matematika TOLONG DIBANTU PLISSSSS ​

TOLONG DIBANTU PLISSSSS ​

Pembahasan :

Rumus 1 ( khusus bilangan ganjil) :

2n - 1

2(15) - 1

30 - 1

29

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Rumus 2 ( barisan aritmatika) :

Un = a + ( n - 1 ) × b

U15 = 1 + ( 15-1 ) × 2

U15 = 1 + 14 × 2

U15 = 1 + ( 14×2 )

U15 = 1 + 28

U15 = 29

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