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
Harlamova29_29 [7]
3 years ago
8

Simplify cos2x tan2(-x)-1 / cos2x

Mathematics
1 answer:
PtichkaEL [24]3 years ago
6 0
-x sec(2) sin (2)cos(2x)-sec(2x)
You might be interested in
Solve the system by elimination <br> 2x+6y= -12 <br> 5x-5y= -10
kvv77 [185]
First thing you should do is reduce coefficients.

1st equation has all multiples of '2'. Divide by 2
---> x +3y = -6

2nd equation has multiples of 5. Divide by 5.
---> x - y = 2

Now elimination part is easier. 
Eliminate 'x' variable by subtracting 2nd equation from 1st.

   x + 3y = -6
-(x  - y = 2)
----------------------
       4y  = -8

Solve for 'y'
4y = -8

y = (-8)/4 = -2


Substitute value for 'y' back into 2nd equation:
x - (-2) = 2
x + 2 = 2
x = 0

Solution to system is:
x=0, y =-2

5 0
3 years ago
Read 2 more answers
For every 4 basketballs there are 5 baseballs what is the ratio
77julia77 [94]
The answer would be 4:5 because they said basketballs first
7 0
3 years ago
Write a compound inequality for the graph shown below.<br> Use x for your variable.
Effectus [21]

Step-by-step explanation:

what i understand is x is a axis

8 0
2 years ago
Given the formula, E = mgh + 1/2mv<img src="https://tex.z-dn.net/?f=%5E%7B2%7D" id="TexFormula1" title="^{2}" alt="^{2}" align="
vlabodo [156]
Answer:
4.5
Explanation:
I’ve attached my work below
Hope it helps, Let me know if you have any questions !

7 0
2 years ago
5x+9−2x+13=67 solve the equation
MariettaO [177]

Answer:

5x+9−2x+13=67

3x+9+13=67

3x+22=67

3x=45

x=15

Mark brainliest!!

3 0
2 years ago
Read 2 more answers
Other questions:
  • Why do we use letters in mathematics?
    8·2 answers
  • Equation of the blue graph? Thank you!
    15·2 answers
  • How do you do this, I don’t understand it
    12·2 answers
  • How do you solve: x-27=62<br> I also need the answer
    5·2 answers
  • Nielsen Rating: The television show nbc Sunday night football broadcast a game between the colts and patriots and received a sha
    12·1 answer
  • Please help me.<br><br>List the sides of MNP in ascending order:<br>m&lt; M = 15, m &lt; N= 75
    14·1 answer
  • How much will it cost for him to buy 3 dozen using the rate $12.00 for 20 cookies?
    8·1 answer
  • What’s the answer I don’t understand it or know it.
    12·1 answer
  • Solve for x then find the measure of angle A
    9·2 answers
  • John has 5 pairs of formal shoes, 2 pairs of traditional shoes, and 4 pairs of casual shoes. What is the probability that John s
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!