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3 years ago

Pls help I will give branlist answer on the best one

Mathematics

1 answer:

fiasKO [112]3 years ago

4 0

Answer:

Plz explain how to do this. Do I put numbers or what?

Step-by-step explanation:

When you tell me, I'll answer! <3

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(cot theta + cosec theta)/(cosec theta (1 + (cot theta/ cosec theta)).

Margarita [4]

The given expression $\dfrac{\frac{cos \theta}{sin \theta} + \frac{1}{sin\theta} }{\frac{1}{sin \theta} (1+cos \theta)} =1$ is true

<h3>Proving trigonometry identity</h3>

Given the expression

$\frac{cot \theta + cosec \theta}{cosec \theta(1+\frac{cot \theta}{cosec \theta} )} =1$

Note that:

cotθ = cosθ/sinθ
cosecθ = 1/sinθ

Substituting the given parameters into the formula;

$\frac{\frac{cos \theta}{sin \theta} + \frac{1}{sin\theta} }{\frac{1}{sin \theta} (1+cos \theta)} =1$

Find the LCM of both the numerator and denominator

$= \dfrac{\frac{cos \theta + 1}{sin \theta} }{(\frac{1+cos \theta}{sin \theta} )}\\$

Divide the result to have:

$= \frac{1+cos \theta}{sin \theta} \times \frac{sin \theta}{1+cos \theta}\\ = \frac{1}{1}\\ = 1 (Proved)$

Learn more on proofs of trigonometry identity here: brainly.com/question/7331447

4 0

3 years ago

Read 2 more answers

A survey was conducted with s students. 30% of those surveyed said that they have traveled out of the country.Of the students wh

olchik [2.2K]

I'm pretty sure the expression would be (if students = s) S - (0.3S + 40)

8 0

4 years ago

A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.1%, 3.2%

defon

Error = 1/2(Maximum range - Minimum range) = 1/2(3.2-1.1) = % = 0.0105

If p is the point estimator;

Then,
Minimum range = p - Error
Maximum range = p + Error

Solving one of the two expressions,
0.011 = p - 0.0105 => p = 0.011+0.0105 = 0.0215 = 2.15%

6 0

3 years ago

Read 2 more answers

Over [174]

Answer:

2x + (x + 2)

Step-by-step explanation:

Let the number = x

"twice a number" means 2x

"increased by the sum of the same number and five" means to add x + 5, so the expression is

2x + (x + 2)

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3 years ago

Translate the sentence into an inequality.

Slav-nsk [51]

Answer:

4+y < 15

the best i can do

Step-by-step explanation:

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3 years ago