Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in example 7). [infinity] cos 2 n2 − cos 2 (n + 1)2 n = 1. if it is convergent, find its sum.

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)

The value of cos 30° is the same as which of the following?

Stefania pours 2 liters of orange juice and 1.5 liters of pineapple juice into a punch bowl. how many liters are in the punch bowl?