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
pashok25 [27]
3 years ago
11

Verify which of the following are identities.

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0

Answer:

Only the second equation is an identity

Step-by-step explanation:

$8 \frac{\tan^2(\theta)}{\sec(\theta)} \csc^2(\theta)=8 \csc(\theta)$

<u>Note that </u>

\tan^2(\theta)\csc^2(\theta)=\sec^2(\theta)

<u>You can confirm it: </u>

$\frac{\sin^2(\theta)}{\cos^2(\theta)}\cdot    \frac{1}{\sin^2(\theta)}= \frac{1}{cos^2(\theta)}= \sec^2(\theta)$

<u>Therefore</u>

$8 \frac{\sec^2(\theta)}{\sec(\theta)} =8 \csc(\theta)$

$8 \frac{\sec(\theta)}{1} =8 \csc(\theta)$

8\sec(\theta)=8\csc(\theta)

<h2>It is not an Identity</h2>

<u>Let's the second one</u>

$13 \frac{\tan^2(\theta)}{\sec(\theta)} \csc^2(\theta)=13\sec(\theta)$

In this case, we already performed the calculations, so it is true. It is an Identity.

You might be interested in
How would i do this problem <br>slope= -2, y-intercept = 7
marin [14]
SINCE the slope is -2 it would be like this -2/1 but first plot the y-intercept onto the graph and go down 2 and over 1.
4 0
3 years ago
Read 2 more answers
Solve for x.
Tamiku [17]
The answer to the question is a

5 0
3 years ago
344531 to the nearest tenth
sineoko [7]
Rounded to the nearest tenth the number doesn't change Fam <span />
4 0
3 years ago
find the size of each sample needed to estimate the difference between the proportions of boys and girls under 10 years old who
Alex Ar [27]

Answer:

sample

Step-by-step explanation:

6 0
3 years ago
What happens to the value of the expression 80-2r as r decreases?
Ghella [55]

Answer:The value of the expression increases as r decreases.

Step-by-step explanation:

To find : What happens to the value of the expression as r decreases?

Given Expression: 80-2r

We check for different value of r as decreasing order,

r        80-2r

5        80-10=70

4        80-8=72

3        80-6=74

2        80-4=76

1         80-2=78

As r decreases the value of expression increases.

Therefore, the value of the expression increases as r decreases.

Hope this helps!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone answer this last question please ?
    12·2 answers
  • The math club members were throwing a pizza party and each person had the choice of two slices one topping. 1/2 of the students
    13·2 answers
  • PLS HELP I BEG YOU I HAVE TO PASS
    13·1 answer
  • In a class with the same number of boys and girls 5/7 of the girls and 1/8 of the boys are honor students what part of the class
    6·1 answer
  • Find the distance between the points (1,3) and (5,0).
    8·1 answer
  • Omg this is hard plz help
    5·1 answer
  • 2 sin x cos x – sin x = 0
    15·1 answer
  • Can yall help wit the numbers and the questions
    6·2 answers
  • Help me with this- ILL GIVE BRANILEST
    6·2 answers
  • Which interval contains the most data values?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!