10 Ways To Win A Girl's Heart: The Good Guy's Guide To Winning At The Game Of Love

10 Ways To Win A Girl's Heart: The Good Guy's Guide To Winning At The Game Of Love

Matematika Diketahui Barisan 7,9,11,13,15 tentukan U13
Suku ke -n =
S25 =​

Diketahui Barisan 7,9,11,13,15 tentukan U13
Suku ke -n =
S25 =​

Penjelasan dengan langkah-langkah:

suku ke -13 (U13)

5 + (13 -1) 2

34

suku ke -25 (U25)

5 + (25 -1) 2

58

Suku ke -n (Un) = a + (n -1) b

a = suku pertama

n = suku yg dicari

-1 = rumus bawaan

b = beda

semoga membantu

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