1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vesnalui [34]
2 years ago
15

Express M=cos3A + cos A and N = sin3A + sin A as a product form​

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

2cosAcos2A, 4sinAcos^2A

Step-by-step explanation:

cos3A+cosA

2cos((3A+A)/2)cos((3A-A)/2)

2cos(4A/2)cos(2A/2)

2cosAcos2A

sin3A+sinA

2sin((3A+A)/2)cos((3A-A)/2)

2sin(4A/2)cos(2A/2)

2sin2AcosA

4sinAcos^2A

You might be interested in
1. 1.267 expanded and word form 2. 2,456.98 expanded and word form 3. 34,568.2​
blagie [28]

1 One and two hundred sixty-eight thousandths

2 two thousand 4 hundred fifty-six and ninety-eight hundredths

3 thirty-four thousand five hundred sixty-eight and two tenths

3 0
3 years ago
Factor. 2v^2-11v-63
Tatiana [17]

Answer:

  (2v +7)(v -9)

Step-by-step explanation:

Factors of 2·(-63) = -126 that have a sum of -11 are 7 and -18, so we can rewrite the middle term to -18v+7v. Then we can factor by grouping.

  2v^2 -18v +7v -63 = 2v(v -9) +7(v -9)

  = (2v +7)(v -9)

5 0
3 years ago
Ashton rode his bicycle 3.25 miles in 12 minutes. What was Ashton’s average rate in miles per hour?
dangina [55]

Answer:

Ashton rode his bicycle 3.25 miles in 12 minutes. What was Ashton's average rate in miles per hour? The answer is 16.25

Ive done this

7 0
3 years ago
Read 2 more answers
HELP PLZ
djverab [1.8K]

Answer:

no 12,5,12

Step-by-step explanation:

6 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%205x%20-%206" id="TexFormula1" title=" {x}^{2} + 5x - 6" alt="
Ymorist [56]

Answer:

(x+6)(x-1)

Step-by-step explanation:

factor using the x-box method

7 0
2 years ago
Read 2 more answers
Other questions:
  • Tan80+tan70/1-tan80tan70
    11·1 answer
  • If 2000 is placed into a bank that pays 3% compound per year how much will be in the acoount after 2 years
    13·1 answer
  • Which identity could be used to rewrite the expression x^4-100?
    7·2 answers
  • Why do we use a geometric compass when doing constructions in geometry
    14·1 answer
  • Subtract:<br><br> x^2+4xy −3y^2 from 2x^2−5xy+y^2
    14·2 answers
  • What is the length of the radius, r?
    13·2 answers
  • The cost of a car rental is ​$35 per day plus 19cents per mile. You are on a daily budget of ​$73. Write and solve an inequality
    10·1 answer
  • Which expression has a value of 1 when x = 2.
    8·1 answer
  • Which expression is equivalent to 9m – 36?
    11·1 answer
  • What is the y-intercept of the line with<br> a slope of 2 that passes through the<br> point (1, 2)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!