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= 0,2 + 47 (0,2) = 0,2 + 9,4 = 9,6
E) suku ke 47 / U47 = U48 - b
= 9,6 - 0,2 = 9,4
f(x) = √x - f(y)
f(x) = √x - 0,53
f(36) = (√36) - 0,53
f(36) = 6 - 0,53
f(36) = 5,47
F. 2a + 5b = 23,02 | ×5 |
5a - 3b = 6,4. | ×2 |
10a + 25b = 115,1
10a - 6b = 12,8
___________________-
31b = 102,3 → b = 102,3/31→ b = 3,3
substitusikan nilai b k salah satu persamaan
misal persamaan pertama..
2a + 5b = 23,02
2a + 5(3,3) = 23,02
2a + 16,5 = 23,02
2a = 23,02 - 16,5
2a = 6,52
a = 6,52/2
a = 3,26
semoga dapat membantu