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
Step2247 [10]
3 years ago
7

find sin(alpha-beta) if sin alpha =-5/13 with alpha between pi and 3pi/2; cos beta=2/5 with beta between 3pi/2 and 2pi

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0
        sin(α) = ⁻⁵/₁₃
sin⁻¹[sin(α)] = sin⁻¹(⁻⁵/₁₃)
               α ≈ 1.1256π

          cos(β) = ²/₅
cos⁻¹[cos(β)] = cos⁻¹(²/₅)
                 β ≈ 1.6311π

sin(α - β) = sin(1.1256π - 1.6311π)
sin(α - β) = sin(-0.5055π)
sin(α - β) = -sin(0.5055π)
sin(α - β) = -sin(90.99)
sin(α - β) ≈ -0.116
You might be interested in
Find the final price of a $149 iPod with a 10% discount<br> and 5% sales tax.
omeli [17]

Answer:

140.80

Step-by-step explanation:

Not completely sure if my answer is correct

4 0
2 years ago
Convert the decimal to a percent: 3.5​
Varvara68 [4.7K]
(3.5 × 100) × 1100 = 350100.
Write in percentage notation: 350%
6 0
3 years ago
Read 2 more answers
Kosma is cooking a lamb stew. When cooking this recipe she uses 12 of a cup of water per person. Today she is cooking for 9 peop
melomori [17]

Kosma used 242 cups of water in total

Kosma is cooking a lamb stew

The recipe uses 12 cups of water per person

She is cooking for 9 people, the number of cups used is calculated by multiplying 12 by 9

= 12 × 9

= 108

She added extra 134 cups of water as she noticed that she will be needing a little extra stew

Total number of cups of water used

= 134 + 108

= 242

Hence Kosma used 242 cups of water for the stew

Read more here

brainly.com/question/2931714?referrer=searchResults

#SPJ1

5 0
2 years ago
Can you help my brother with this question 3 pls
cricket20 [7]
They are not equivalent fractions. You will have to turn 3/4 into an 8th, so multiply it by two, (6/8) and plot that on a graph. 
7 0
3 years ago
I'll give brainly &lt;3 Please help with these questions &lt;3
Naily [24]
Difference would be 1000x3.0 - 8.8x10000 = -85000
Scientific notation would be 8.5x10^-4
7 0
3 years ago
Other questions:
  • Find a product that only contains 2 and 9
    11·2 answers
  • What is the arc length of a segment of a circle with a central angle of 165 and a radius of 3 inches?
    13·2 answers
  • Select all angles that have a negative measure.
    7·2 answers
  • Please help and thank you
    13·1 answer
  • On Saturday, 45% of the music Brianna listened to was country songs. She listened
    13·1 answer
  • What are the domain and Range of f(x)=Log(x+6)-4
    6·1 answer
  • Olve the system of equations.
    10·1 answer
  • What is the range of possible sizes for side x? the other two sides are 8.0 and 8.5
    9·1 answer
  • Why would we start at (0,200)?
    13·1 answer
  • Help with math problem. Fractions
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!