Mathematics, 25.06.2020 02:01 mjlchance367
Henry is asked to find the exact value of cosine StartFraction 10 pi Over 3 EndFraction. His steps are shown below.
1. Subtract 2 pi from StartFraction 10 pi Over 3 EndFraction as many times as possible:
StartFraction 10 pi Over 3 EndFraction – 2 pi = StartFraction 4 pi Over 3 EndFraction
2. Find the reference angle for StartFraction 4 pi Over 3 EndFraction: StartFraction 3 pi Over 2 EndFraction – StartFraction 4 pi Over 3 EndFraction= StartFraction pi Over 6 EndFraction.
3. The cosine value for StartFraction pi Over 6 EndFraction is StartFraction StartRoot 3 EndRoot Over 2 EndFraction.
4. The cosine value is positive because StartFraction pi Over 6 EndFraction is in the first quadrant.
Which of the following describes Henry’s errors?
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 14:30
Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?
Answers: 1
Mathematics, 21.06.2019 16:00
What is the quadric regression equation that fits these data
Answers: 1
Mathematics, 21.06.2019 16:30
What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?
Answers: 2
Mathematics, 21.06.2019 18:00
George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain
Answers: 1
You know the right answer?
Henry is asked to find the exact value of cosine StartFraction 10 pi Over 3 EndFraction. His steps a...
Questions
Mathematics, 19.01.2022 23:40
Biology, 19.01.2022 23:40
Chemistry, 19.01.2022 23:40
Chemistry, 19.01.2022 23:40
Social Studies, 19.01.2022 23:50
SAT, 19.01.2022 23:50
Mathematics, 19.01.2022 23:50
Mathematics, 19.01.2022 23:50
