Question

Tentukan nilai maksimum, minimum dan titik maksimum, minimum

F(x) = 5 sin x - 2, 0° ≤ x ≤ 360°​

Answer 1

Trigonometri

f(x) = 5 sin x - 2

range nilai sin x :

-1 ≤ sin x ≤ 1

Nilai maksimum fungsi

= 5.1 - 2

= 3

Nilai minimum fungsi

= 5(-1) - 2

= -7

minimum

sin x = -1

x = 270°

y = f(270°) = -7

titik minimum → (270° , -7)

maksimum

sin x = 1

x = 90°

y = f(90°) = 3

titik maksimum → (90° , 3)