Given:
A. sin(x)
B. cos(x)
C. cos(y)
D. sin(y)
Use...
Mathematics, 30.10.2020 01:00 starswarsfan
Given:
A. sin(x)
B. cos(x)
C. cos(y)
D. sin(y)
Use the drop-down menus in the derivation of the sine sum identity:
sin(x + y)
= cos (StartFraction pi Over 2 EndFraction minus (x + y))
= Cosine ((StartFraction pi over 2 EndFraction minus x) minus y)
= Cosine (StartFraction pi Over 2 EndFraction minus x)
A
+ Sine (StartFraction pi Over 2 EndFraction minus x)
A
sin(x)cos(y) + cos(x)sin(y)
Answers: 3
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
Mathematics, 22.06.2019 00:00
If two parallel lines are cut by a transversal, interior angles on the same side of the transversal are supplementary. a. always b. sometimes c. never
Answers: 2
Mathematics, 22.06.2019 00:00
Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,
Answers: 1
Mathematics, 22.06.2019 04:00
Akayaker travels 3 miles upstream and 3 miles downstream in a total of 4 hours. in still water, the kayaker travels at a speed of 2 mph. what is the average speed of the river's current?
Answers: 2
English, 22.01.2021 19:20
Mathematics, 22.01.2021 19:20
Mathematics, 22.01.2021 19:20
Mathematics, 22.01.2021 19:20
English, 22.01.2021 19:20
Chemistry, 22.01.2021 19:20
Mathematics, 22.01.2021 19:20
Mathematics, 22.01.2021 19:20
History, 22.01.2021 19:20