the the area region R is..
a. 36 area units
b. 36⅓ area units
c. 36⅔ area units
d. 72 area units
e. 72⅓ area units
pake cara ya
The region R bounded by graph y = 8-x² and y = 2x
Jawaban Terkonfirmasi
Jawab
y = 8 – x²
y = 2x……..(-)
0 = -x² – 2x + 8
atau
x² + 2x – 8 = 0
a= 1
b = 2
c = – 8
D = b² – 4ac
D = (2)² – 4(1)(-8)
D = 36
Luas = D√D / (6.a²)
L = (36)(6)/(6.)
L = 36