1000 Word Search Puzzle Book for Adults: Big Puzzlebook with Word Find Puzzles for Seniors, Adul

1000 Word Search Puzzle Book for Adults: Big Puzzlebook with Word Find Puzzles for Seniors, Adul

Matematika un= an+b jika u3 =9 u5=-1 tentukan nilai a dan b ,rumus un , dan u 60​

un= an+b jika u3 =9 u5=-1 tentukan nilai a dan b ,rumus un , dan u 60​

Jawaban:

B= -5

A=19

Rumus un=a+(n-1)b

u60=19+(60-1)-5

=19+(59)-5

=19+ -295

= -276

KOREKSI JIKA SALAH

LIKE JIKA TERBANTU

Jawab:

Penjelasan dengan langkah-langkah:

U3 = a + 2b = 9

U5 = a + 4b = -1

U5 - U3

(a + 4b) - (a + 2b) = -1 - 9

2b = -10

b = -5

a + 4(-5) = -1

a + -20 = -1

a = 19

U60 = 19 + (60-1) x -5

U60 = 19 + 59 x -5

U60 = -276

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