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
Virty [35]
3 years ago
10

Prove the identity with steps. sin (x-y)/cos x sin y = tan x cot y -1​

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0

Step-by-step explanation:

sin(x−y) / (cos x sin y)

Use angle sum/difference formula:

(sin x cos y − sin y cos x) / (cos x sin y)

Divide:

(sin x cos y) / (cos x sin y) − 1

Rearrange:

(sin x / cos x) (cos y / sin y) − 1

Simplify:

tan x cot y − 1

You might be interested in
What number is 73% of 58?
lapo4ka [179]
73℅ of 58
= (73/100) × 58
= (73×58)/100
= 4234/100
= 42.34
7 0
4 years ago
Read 2 more answers
Help i'll give 20points​
saul85 [17]

Step-by-step explanation:

512+18=530

423+12=435

5421+14=5435

6324+32=6356

7985+23=8008

5 0
3 years ago
Need the answer times running out on the test
boyakko [2]

B is the answer

Expand factors

Reorder multiply

Transform

Answer!

6 0
2 years ago
PLZZZ HELP will mark brainliest!
erica [24]

Answer:

(3,8): No,  (-1,-11): Yes,  (2,7): Yes,  (0,-6): No

Step-by-step explanation:

Basically, you just substitute x and y with the numbers given.

18x - 3y = 15

y = 6x - 5

(3,8):

18(3) - 3(8) = 15

54 - 24 = 30  It is not equal to 15, so it does not work.

y = 6x - 5

8 = 6(3) - 5

8 = 13  It is not equal to 8, so it does not work.

Therefore, (3,8) is not a solution.

Try this for every pair and you will find that (-1,-11) and (2,7) are solutions.

I hope this helps!

8 0
3 years ago
Solve the following:<br><br> NO BOTS OR PEOPLE WANTING POINTS!
Ksenya-84 [330]
Memes memes memes memes

8 0
3 years ago
Other questions:
  • The perimeter of the garden shown is 6x + 2 units. find the length of the missing side
    7·1 answer
  • 3r^2-8r-28=0 <br> Solve with quadratic formula
    11·2 answers
  • The circles are identical. What is the circumference of each circle? Circle 1: radius of 2x; Circle 2: diameter of 2x+3. A. 3/2
    7·1 answer
  • thomas buys a cardboard sheet that is 8 by 12 inches. let x be the side lenghth of each cut out. create an equation for the volu
    7·1 answer
  • Write an equasion of the line in point-slope form that passes through the points (-16, 8) (4,2)
    6·1 answer
  • How many exterior angles can be drawn at one vertex of a triangle?
    6·1 answer
  • True or false? all right triangles are isosceles.
    6·2 answers
  • Find the distance between the points (-3, 9) and (6, -5). Round the answer to the nearest tenth.
    5·2 answers
  • One-sixth of the students surveyed use their cell phones to listen to
    12·2 answers
  • One evening, a restaurant served a total of 5/6 of a loaf of wheat bread and 3/10 of a loaf of white bread. How many loaves were
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!