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
Luda [366]
4 years ago
14

How to solve arctan[tan(7pi /4)] ...?

Physics
1 answer:
Svet_ta [14]4 years ago
7 0
Well, 
arctan is a bijection from R into (-pi/2 , pi/2)*and 
pi is a period of tangent function: 
so 
as we have : tan(7pi/4) = tan(pi - pi/4) = - tan(pi/4) 
we finally get : 

<span>arctan(tan(7pi/4)) = artan(tan(- pi/4)) = - pi/4 
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
You might be interested in
Light travelling in one material enters another material in which it travels faster. The light wave will:
Free_Kalibri [48]
The light will change its direction and bend away from the normal.
8 0
4 years ago
what is the magnitude of the gravitational force between two 5.0-kilogram masses separated by a distance of 5.0 meters?
Vladimir79 [104]
6.7x10^-11n is your answer
8 0
3 years ago
Read 2 more answers
Plz help The momentum of a baseball changes dramatically when struck by a bat.Momentum of the ball is not conserved. The best ex
Luda [366]

Answer:

When the bat hits the ball, it exerts some force on the ball. Just think about a home run hitter hitting a stationary ball. How far do you think it will go? Will it go more than 400 ft.? Probably not. While the kinetic energy transferred from the bat to the ball accounts for some energy of the ball, it does not account for all. Where is the mysterious energy coming from?

The answer is conservation of momentum. I just said momentum is conserved but how do I know that? I know that because of Newton's 2nd law: F=ma (Force equals mass times acceleration)

Conservation of momentum means that the harder you throw you, the harder the ball will bounce back at you. That is the reason it is easier to hit a home run on a fast ball than a curveball.

Conservation of momentum also means that the bat can transfer some of its momentum to the ball. This is why it is better to use a heavier bat if you swing just as fast. The momentum is the product of the mass and velocity, so to make it easier to understand;

a heavier bat swung at the same speed as a lighter bat will have more momentum.

8 0
3 years ago
A bike that is coasting down a steep hill increases its speed from 8.0 m/s to 14 m/s. The length of the hill is 55 meters. How m
masya89 [10]

t=5s

it was correct on my do-now

so I hope it was useful for you

8 0
3 years ago
Read 2 more answers
A scientist in Northern California is studying the tree rings of a very old redwood tree. He notices that the oldest tree rings
Studentka2010 [4]

Answer: colder and drier

Explanation:

Trees don’t grow well in wet climates, nor when they are cold. The wider the rings, the healthier the tree is. Since it was narrow and then wide, was bad climate and then good.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Two electrons exert a force of repulsion of 1.2 N on each other. How far apart are they? The elementary charge is 1.602 × 10−19
    10·1 answer
  • To what extent do drugs benefit society (legal and illegal drugs - can include medication)
    8·1 answer
  • A scientist is performing an experiment on a powder. Which of the following is a sign that a chemical change has definitely occu
    14·1 answer
  • What are three disadvantages of case studies
    10·1 answer
  • The Bohr radius a0 is the most probable distance between the proton and the electron in the Hydrogen atom, when the Hydrogen ato
    9·1 answer
  • A __________ is two or more atoms joined together.
    10·2 answers
  • When 142 J of work is done in pushing a box horizontally 13.3m how much force is applied​
    10·1 answer
  • A solid cylinder of mass 12.0 kgkg and radius 0.250 mm is free to rotate without friction around its central axis. If you do 75.
    15·1 answer
  • Science
    11·1 answer
  • Four metals were kept in contact with each other. The table below shows the initial temperature of the metals.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!