Question

Kerjakan pake cara sebisanya ya pliss

Answer 1

1. fungsi minimum -1, syarat minimum a>0

F'(x) = 2nx - 4 = 0
x = 2/n

f(x) = nx² - 4x + n + 2
-1 = n(2/n)² - 4(2/n) + n + 2
-1 = 4/n - 8/n + n + 2
-3 = -4/n + n
-3n = -4 + n²
n² + 3n - 4 = 0
(n - 1)(n+4) = 0
n = 1 atau n = -4

syarat minimum: nilai a > 0.

nilai n yg memenuhi:
n = 1

Answer 2

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