If f(x – 2) = 3x2 + 4x + 1. Find the area of the sector
-
A.
8 -
B.
40 -
C.
7 -
D.
24 -
E.
32
Correct Answer: Option B
Explanation
f(x – 2) = 3x2 + 4x + 1
f(1) will be f(3 – 2)
When x = 3, f(1) = 3(3)2 + 4 x 3 = 1
27 + 12 +1 = 40
f(x – 2) = 3x2 + 4x + 1
f(1) will be f(3 – 2)
When x = 3, f(1) = 3(3)2 + 4 x 3 = 1
27 + 12 +1 = 40