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
Ivahew [28]
3 years ago
14

Prove this:cot 75° + cot 15°=4​

Social Studies
1 answer:
sashaice [31]3 years ago
6 0

Answer:

tan75 {}^{0}  = 2 +  \sqrt{3}

tan \: 15 {}^{0}  = 2 -  \sqrt{3}

=> cot 75⁰ + cot 15⁰

= cot(90⁰ - 15⁰) + cot(90⁰ - 75⁰)

= tan 15⁰ + tan 75⁰

=

2 +  \sqrt{3}  + 2 -  \sqrt{3}  = 4

(proven)

You might be interested in
Amnesty International is a(n) organization concerned primarily with .
Pachacha [2.7K]
A the first one that you do is the first one that you do
4 0
3 years ago
Read 2 more answers
What is the second step in calculating the mean?<br> divide <br> multiply
Alchen [17]

Well, the first step is add. The second step in calculating the mean is dividing the number of items in the data set. Hope this helped!

6 0
3 years ago
Read 2 more answers
IF U GET RIGHT U GET BRAINLIEST!!!!!!!!!!!!World War II in Europe began with A) the invasion of Belgium. B) Germany's attack on
Mila [183]
World War II in Europe began with Germany's invasion of Poland on September 1, 1939. Therefore, the answer is C) Germany's invasion of Poland. Hope this helps!
8 0
3 years ago
Read 2 more answers
Imitation is most closely related to the concept of:.
AysviL [449]

Imitation is <em>most closely related</em> to the concept of:.

  • Observational Learning

<h3>What is Observational Learning?</h3>

This refers to the use of studying methods in order to analyse and implement behavior from another person.

With this in mind, we can see that imitation refers to the copy of another person or thing and this very closely relates to the observational learning.

Read more about Observational Learning here:
brainly.com/question/4433329

7 0
2 years ago
Sally's grandmother, Laura, promised in her will to make Sally an heir to her home if she would move into Laura's home and care
kupik [55]

Answer:

yes, Sally is legally entitled to the home

Explanation:

Based on the information provided within the question in regards to the situation at hand, we can say that yes, Sally is legally entitled to the home. This is because with the verbal agreement that Sally made with Laura, she was granted consideration in exchange for helping and caring for her. This is a legal term describing value that is interchanged between two parties. Which in this case the value is caring and helping Laura in exchange for being named an heir to her home.

7 0
3 years ago
Other questions:
  • The type of unemployment that rises as the economy goes into a recession is called
    7·1 answer
  • What three ideals are mutually dependent and guide the conduct of every soldier?
    15·1 answer
  • True or false? despite the lack of explicit constitutional authority, the federal government has established a significant prese
    7·1 answer
  • Rain forest organisms do not usually have to compete
    11·2 answers
  • In what way will membership in the european union most benefit candidate nations?
    15·1 answer
  • According to this section of the text, how did Jackie Robinson have an impact on major league baseball? *
    15·2 answers
  • Why do different castes have different social rituals and custom​
    5·1 answer
  • Wear modern clothing at work.
    11·1 answer
  • a therapy that combines cognitive therapy and behavior therapy with the goal of developing the client’s self-efficacy.
    12·1 answer
  • An important aspect of any disease is its _____, or cause.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!