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
REY [17]
3 years ago
9

Verify the identity​

Mathematics
1 answer:
Oxana [17]3 years ago
3 0

Answer:

see below

Step-by-step explanation:

sin x                                 1

-------------------              = -----------

sec^2 x - tan ^2 x               csc x

Sec = 1/cos   and tan = sin/cos

sin x                                         1

-------------------                     = -----------

1/ cos ^2 x -sin^2/cos ^2 x       csc x

Factor the denominator

sin x                                         1

-------------------                     = -----------

(1-sin^2 x)/ cos ^2 x                csc x

We know that 1 - sin^2 x = cos ^2

sin x                                         1

-------------------                     = -----------

(cos^2 x)/ cos ^2 x                csc x

sin x                                         1

-------------------                     = -----------

1                                               csc x

Multiply the top and bottom of the left hand side by 1/ sin x

sin x  * 1/ sin x                              1

-------------------                     = -----------

1     * 1 sin x                             csc x

1                                                1

-------------------                     = -----------

       1 sin x                             csc x

We know that 1/sin x = csc

1                              1

---------               = -----------

csc (x)                   csc x

You might be interested in
Work out the area of the trapezium ABDE.
kvv77 [185]

Answer:

(half * base 1 * base 2)/height

base 1 is 6 and base 2 is 9

get the height from similarity

6/9 = 8/CE

therefore CE = 72/6

6 0
2 years ago
Type the correct answer in each box. If necessary, use / for the fraction bar(s).
spayn [35]

Answer:X=5/6 Y=8/5

Step-by-step explanation:

-6x +5y=3

+6x

5y=6x+3 (divide each number by 5)

Y=6/5x + 3/5 (Plug that into your x equation)

12x+15 (6/5x + 3/5) =34

(Multiply 15 by the numbers in the brackets you can break it down and do 15•6 divided by 5 )

15•6=90 divided by 5=18x

15•3= 45 divided by 5=9

(Add like variables)

12x+18x=30x

30x+9=34

(Subtract 9 from itself do the same to 34)

9-9= 0

34-9=25

Divide 30 by itself to get x by itself then divide 25 by 30

25 divided by 30= 5/6

X=5/6 (plug that into the y equation)

Y=6/5•5/6+3/5

Multiply 6/5 and 5/6 straight across because this is multiplication you don't need like denominators

6/5•5/6=30/30=1

Y=1+3/5

1/1 + 3/5

Here you need to have like denominators because it is addition so just use 5

5•1=5

5/5+3/5=8/5

Y=8/5

5 0
2 years ago
Rename each pair of fractions with common denominator <br> 1/4 and 2/3
GrogVix [38]
3/12 and 8/12

The common denominator is 12
5 0
3 years ago
Read 2 more answers
Help please :) <br> V74 <br> V74
Lelechka [254]

Answer:

x =10

Step-by-step explanation:

Using the pythagoras theorem om one of the right triangle;

(√74)² = (x/2)²+7²

74 = (x/2)²+49

(x/2)² = 74 - 49

(x/2)² = 25

Square root both sides

√ (x/2)² = ±√25

x/2 = ±5

x = 2 * ±5

x = ±10

Hence the value of x is 10

8 0
3 years ago
What are the answer for these questions?​
Burka [1]

Answer:

1. yes

2. 3

3. 1x

4. y=1x+3 or y=x+3

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • The perimeter of a parallelogram is 60 meters. The width of the parallelogram is 6 meters less than its length. Find the length
    5·1 answer
  • How would you find four points using an equation?<br><br> Use this as an example...<br> y = 40x + 30
    5·1 answer
  • What is 12L = how many mL hellllp
    6·2 answers
  • In a school of 450 students, 110 of them are in the choir, 240 of them are in the band and 60 students are in the choir and the
    6·1 answer
  • Fourteen students are surveyed about their favorite color. Four students choose green, two choose black, five choose orange, one
    9·2 answers
  • The distance between New Orleans and Houston is 353 miles. At 12:20 PM, a bus
    15·1 answer
  • If 8 cents are needed to buy 10 pebbles, how many dollars are needed to buy 205 pebbles?
    15·1 answer
  • The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance
    8·1 answer
  • Why do i have depression
    7·1 answer
  • What is the special angle pair relationship between the two
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!