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
Nuetrik [128]
3 years ago
14

Solve the trigonometric equation 3-3cosx=2 sin^2 x

Mathematics
1 answer:
Zina [86]3 years ago
6 0
= 3 - 3cos x - 2(1- cos^2 x)
= 2cos^2 x - 3cos x + 1
=(cos x -1)(cosx - 1/2)
   now cos x = 1    or cos x= 1/2 
   draw a graph we get = + ve values
  hence .. 0 ,180,360 and 60,240, degrees in range x<2pi 
  
You might be interested in
Simplify the expression. Write your answer as a power.
iVinArrow [24]

Answer:

The answer is 3⁴

Step-by-step explanation:

3² • 3² = 3²⁺² = 3⁴

Thus, The answer is 3⁴

<u>-TheUnknownScientist</u>

8 0
3 years ago
I need some help please
Ganezh [65]
SOH CAH TOA tells you
  Cos(x) = Adjacent/Hypotenuse
so you can find
  x = arccos(24/28)
  x ≈ 31.0°
8 0
3 years ago
Find the measure of an interior and an exterior angle of a regular 46-gon
alina1380 [7]
Exterior is 360 and interior is 7920!
8 0
3 years ago
A rectangular field is fully enclosed with 218 meters of fencing. The length of the field is
mestny [16]

The length and width of a rectangular field fully enclosed with 218 metes fencing  are 63 meters and 46 meters respectively.

The perimeter of a rectangle is the sum of the whole four sides. Therefore, the perimeter of a rectangle is defined as follows:

  • perimeter = 2(l + w)

where

l = length

w = width

perimeter = 218 meters

The length of the field is  17 meters longer than the width, w. Therefore, the length is defined as follows:

  • l = 17 + w

The length and the width can be calculated as follows:

218 = 2(l + w)

218 = 2(17 + w + w)

218 = 34 + 4w

218 - 34 = 4w

184 = 4w

divide both sides by 4

w = 184 / 4

w = 46 meters

length = 17 + 46

length = 63 meters

learn more on rectangle here: brainly.com/question/15989799?referrer=searchResul

8 0
2 years ago
SOMEONE PLEASE ANSWER THESE!!! ASAP!!
My name is Ann [436]

Answer:

1. Because it is an integer.

2. Because it is a terminating decimals.

3. Because it is a terminating decimal as well as an integer.

4.Because it is a natural number.

5.Because it is a terminating decimal when divided.

6. Because it is a whole number.

7. Because it is a natural number.

8. Because it is a terminating negative decimal when divided(simplified basically).

Step-by-step explanation:

Irrational numbers include:

Non terminating,and non recurring decimals.

Example: 1.2345677854903421......so on.

Hope this helps... :-)

4 0
3 years ago
Other questions:
  • Tammy takes a taxi home from the airport. The taxi fare is $2.10 per mile, And she gives the driver a tip of five dollars. Tammy
    5·1 answer
  • A roller of radius 14.25 cm turns at 10 revolutions per second. What is the linear velocity of the roller in meters per second?
    10·2 answers
  • Solve the inequality r 4-2(r-14)&gt;0
    10·1 answer
  • What is your best pick up line?
    14·1 answer
  • Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x un
    14·1 answer
  • A film distribution manager calculates that 4% of the films released are flops. If the manager is correct, what is the probabili
    13·1 answer
  • HURRY
    6·2 answers
  • Which describes the transformation of. ◇PQR to z◇P'Q'R​
    5·2 answers
  • Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
    5·1 answer
  • Can someone help me pls
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!