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
Ivan
3 years ago
10

Q6 Q21.) Verify the identity, write the left side numerator in terms of a sum or difference formula for sine or cosine, rewrite

the expression found in the previous step by separating the denominator, and the expression from the previous step then simplifies to cot α - tan β using​ what?

Mathematics
2 answers:
NARA [144]3 years ago
5 0

Expanding cos(alpha+beta) = cos(alpha)*cos(beta) - sin(alpha)*sin(beta)


Separating the denominator

cos(alpha+beta)/[sin(alpha)*cos(beta)] = cos(alpha)*cos(beta)/[sin(alpha)*cos(beta)] - sin(alpha)*sin(beta)/[sin(alpha)*cos(beta)]


Using Quotient Identity, the expression becomes

cos(alpha+beta)/[sin(alpha)*cos(beta)] = cos(alpha)/sin(alpha) - sin(beta)/cos(beta)

= cot(alpha) - tan(beta)


victus00 [196]3 years ago
3 0
Cos(α + β) = cosα*cosβ - sinα*sinβ

denominator remains the same for both expressions as sinα*cosβ

the simplification uses A. Quotient Identity

You might be interested in
Shayla is baking muffins that require one-half cup vegetable oil. She only has one-third cup of vegetable oil left. How much mor
REY [17]
Well to make 1/3 and 1/2 equivalent fractions you need to find a common denominator. So it would be 6. 1/3 now becomes 2/6 and 1/2 becomes 3/6. So she would need 1/6 more cup of vegetable oil.
5 0
3 years ago
Four siblings have a dog walking business. The table shows the hours worked by each sibling. Each sibling earns $25.50 per hour
dalvyx [7]

Answer:

Step-by-step explanation:

Michael works for 25 hours

5 0
3 years ago
Read 2 more answers
Consider the following ordered data. 6 9 9 10 11 11 12 13 14 (a) Find the low, Q1, median, Q3, and high. low Q1 median Q3 high (
IrinaVladis [17]

Answer:

Low             Q1                Median              Q3                 High

6                  9                     11                      12.5                14

The interquartile range = 3.5

Step-by-step explanation:

Given that:

Consider the following ordered data. 6 9 9 10 11 11 12 13 14

From the above dataset, the highest value = 14  and the lowest value = 6

The median is the middle number = 11

For Q1, i.e the median  of the lower half

we have the ordered data = 6, 9, 9, 10

here , we have to values as the middle number , n order to determine the median, the mean will be the mean average of the two middle numbers.

i.e

median = \dfrac{9+9}{2}

median = \dfrac{18}{2}

median = 9

Q3, i.e median of the upper half

we have the ordered data = 11 12 13 14

The same use case is applicable here.

Median = \dfrac{12+13}{2}

Median = \dfrac{25}{2}

Median = 12.5

Low             Q1                Median              Q3                 High

6                  9                     11                      12.5                14

The interquartile range = Q3 - Q1

The interquartile range =  12.5 - 9

The interquartile range = 3.5

7 0
3 years ago
At what point do the graphs of 9x - 2y = 30 and x + 2y = 10 intersect
strojnjashka [21]

Answer:

(4,3)

Step-by-step explanation:

4 0
3 years ago
This one to thx for help​
vagabundo [1.1K]
What is the full question ?
5 0
3 years ago
Read 2 more answers
Other questions:
  • Help. divide and simplify(104i)/(3+i) express a in a + bi form
    13·1 answer
  • If m6 = 123.5°, then m1 is 56.5°. 67.5°. 123.5°. 136.5°.
    6·2 answers
  • A half gallon of pineapple juice for $1.79 OR 1 gallon of pineapple juice for $3.55
    12·1 answer
  • Select the point that is a solution to the system of line
    5·1 answer
  • Complete the steps to solve the -19x - 11=-144 <br>​
    7·2 answers
  • A 24-1b turkey costs $21.36. Assuming the costs are proportional, how much would a 17.5 lb turkey cost?
    15·2 answers
  • Read the sentence.
    11·1 answer
  • (GIVING BRAINLIEST TO WHO HELPS ME!!)
    9·1 answer
  • I WILL GIVE BRAINLYIST A square is shown below. Which expression can be used to find the area, in square units, of
    8·1 answer
  • Which point satisfies the system of equations y=3x-2 and y=-2x+3?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!