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
Mekhanik [1.2K]
3 years ago
10

Answer the question in the picture

Mathematics
1 answer:
Svet_ta [14]3 years ago
6 0
<h3>Answer:</h3>
  • left picture (bottom expression): -cot(x)
  • right picture (top expression): tan(x)
<h3>Step-by-step explanation:</h3>

A graphing calculator can show you a graph of each expression, which you can compare to the offered choices.

_____

You can make use of the relations ...

... sin(a)+sin(b) = 2sin((a+b)/2)cos((a-b)/2)

... cos(a)+cos(b) = 2cos((a+b)/2)cos((a-b)/2)

... cos(a)-cos(b) = -2sin((a+b)/2)sin((a-b)/2)

Then you have ...

\dfrac{\cos{2x}-\cos{4x}}{\sin{2x}+\sin{4x}}=\dfrac{2\sin{3x}\sin{x}}{2\sin{3x}\cos{x}}=\dfrac{\sin{x}}{\cos{x}}=\tan{x}

and ...

\dfrac{\cos{2x}+\cos{4x}}{\sin{2x}-\sin{4x}}=\dfrac{2\cos{3x}\cos{x}}{-2\cos{3x}\sin{x}}=\dfrac{-\cos{x}}{\sin{x}}=-\cot{x}


You might be interested in
Which equation can be used to find the measure of Arc E H G?
anygoal [31]

Answer:

I need more context ,like the graph to figure this out.

Step-by-step explanation:

5 0
2 years ago
A line has a slope of 5 and passes through the point
podryga [215]

Answer:

Step-by-step explanation:

The equation is mx+b=y.

M=slope (in this case 5)

x=x coordinates

b=y intercept

y=y coordinates

For the x and y coordinates, I'll use (2,0).

5(2)+_=0

10+_=0.

In this case, we only have one awnser, -10. Since 10+(-10) are the only ways to equal 0.

Hope this helps,

5 0
3 years ago
What is the value of x in the equation 3x- 4y =65, when y= 4?
Alexus [3.1K]
3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27
3 0
3 years ago
Read 2 more answers
Simplify the expression <br> 9− 3(2)2
Kazeer [188]

Answer:

-3

Step-by-step explanation:

9-3(2)2

9-(6)2

9-12

-3

3 0
3 years ago
Read 2 more answers
Tim has to read some books for school Tim read 1 books on Tuesday,
miv72 [106K]

Answer:

2 books

Step-by-step explanation:

1+1=2

7 0
3 years ago
Other questions:
  • Subtract the rational expression
    12·1 answer
  • C'est quoi un square root ?<br>​
    6·2 answers
  • The amount of tax for another camera is $5.25 and the tax rate is 6%. Use the given equation to find the price before tax.
    8·2 answers
  • How do you show 932 divided by 8 in partial quotients
    8·1 answer
  • 3(n+1) evaluate each expression for n= 5
    10·1 answer
  • on a map the distance between two historical markers in 4.5 in in 2.5 in inches represents 10 mi what is the actual distance bet
    6·2 answers
  • How many woods are there
    12·1 answer
  • The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole. Fraction: D
    12·1 answer
  • Find the slope of this Linear Function.<br>​
    12·1 answer
  • 2 + 2 x 0<br><br> Anyone wanna join my pad✨let ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!