Answer and workings in the attachment below.
2 and 41/50 as a percent is 282%.
First, get the difference between the price level changes.
Then, divide it by the initial price level, which is 109.
Multiply by 100 to get its percent.
Thefore, the inflation rate during the year is 3.67 percent.
Step-by-step explanation:
∫ dt / (cos²(t) ⁹√(1 + tan(t)))
If u = 1 + tan(t), then du = sec²(t) dt.
∫ du / ⁹√u
∫ u^(-1/9) du
9/8 u^(8/9) + C
9/8 (1 + tan(t))^(8/9) + C