10-Minute Stretching: Simple Exercises to Build Flexibility into Your Daily Routine

10-Minute Stretching: Simple Exercises to Build Flexibility into Your Daily Routine

Matematika ................pakaiii caraaa ygyyy​

................pakaiii caraaa ygyyy​

Penjelasan dengan langkah-langkah:

U3 = 6 → a + (3 - 1)b → a + 2b = 6

U5 = 18 → a + (5 - 1)b → a + 4b = 18 –

--------------------

-2b = -12

b = -12/-2

b = 6

Beda barisan = 6 (B)

Penjelasan dengan langkah-langkah:

Un = a + (n - 1)b

dengan a = suku pertama, dan b = beda barisan

ditanya b..?

U3 = 6

U5 = 18

U3 = a + (3 - 1)b = a + 2b

U5 = a + (5 - 1)b = a + 4b

a + 2b = 6

a + 4b = 18

----------------- - (Dikurang)

- 2b = - 12

b = - 12/ - 2

b = 6

Jadi, Jawabannya = b. 6

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