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
valentinak56 [21]
3 years ago
14

Please help I am so lost!!!

Mathematics
1 answer:
ASHA 777 [7]3 years ago
4 0
\bf tan\left( \frac{x}{2} \right)+\cfrac{1}{tan\left( \frac{x}{2} \right)}\\\\
-----------------------------\\\\
tan\left(\cfrac{{{ \theta}}}{2}\right)=
\begin{cases}
\pm \sqrt{\cfrac{1-cos({{ \theta}})}{1+cos({{ \theta}})}}
\\ \quad \\

\cfrac{sin({{ \theta}})}{1+cos({{ \theta}})}
\\ \quad \\

\boxed{\cfrac{1-cos({{ \theta}})}{sin({{ \theta}})}}
\end{cases}\\\\

\bf -----------------------------\\\\
\cfrac{1-cos(x)}{sin(x)}+\cfrac{1}{\frac{1-cos(x)}{sin(x)}}\implies \cfrac{1-cos(x)}{sin(x)}+\cfrac{sin(x)}{1-cos(x)}
\\\\\\
\cfrac{[1-cos(x)]^2+sin^2(x)}{sin(x)[1-cos(x)]}\implies 
\cfrac{1-2cos(x)+\boxed{cos^2(x)+sin^2(x)}}{sin(x)[1-cos(x)]}
\\\\\\
\cfrac{1-2cos(x)+\boxed{1}}{sin(x)[1-cos(x)]}\implies \cfrac{2-2cos(x)}{sin(x)[1-cos(x)]}
\\\\\\
\cfrac{2[1-cos(x)]}{sin(x)[1-cos(x)]}\implies \cfrac{2}{sin(x)}\implies 2\cdot \cfrac{1}{sin(x)}\implies 2csc(x)
You might be interested in
HeLLPPPP PLLLSs!!!!!
zubka84 [21]

Answer:

(x+1)(3x^3+2x^2-4x+4)

Step-by-step explanation:

I hope this helps!

7 0
3 years ago
Choose as many answers as apply.
suter [353]

All of them can be accomplished with electronic banking, but C and D would be easiest to do online.

3 0
3 years ago
Read 2 more answers
5. The distance between two cities on a map is 4 centimeters. The map uses
Nata [24]

Answer:I think the answer is B

Step-by-step explanation:

4 0
2 years ago
An altitude of a triangle is a perpendicular segment from a vertex to the line containing the opposite side true or false
sashaice [31]
The answer is true. An altitude of a triangle is the perpendicular segment from a vertex to the line containing the opposite side.
3 0
2 years ago
Can someone help plz
olchik [2.2K]

Answer:

A.) 2x - 9x - 30 = -6

Step-by-step explanation:

hello !

to solve this system of equations, first, we substitute the equation y = 3x + 10 to the <em>y </em>variable in the equation 2x-3y = -6. Therefore, we get:

2x - 3(3x+10)=-6

now, we simplify by multiplying -3 to the variables inside the parenthesis, which, in short, is also called the distributive property. thus, we get:

2x - 9x - 30 = -6

4 0
3 years ago
Other questions:
  • Selan will use dot plots to compare the number of siblings of her classmates. If she plots the girls siblings in one plot and th
    12·2 answers
  • At a baseball game, the probability that a fan brings a glove is 0.08. The probability that a fan is left-handed is 0.12. What i
    11·2 answers
  • If ever 100$ equals 1 points how much does 261 points equal in dollars
    9·2 answers
  • Which is a true statement about an exterior angle of a triangle?
    6·1 answer
  • The graph shows the cost of 4 kinds of plants. Which kind of plant has a unit cost of $2?A. rose
    5·2 answers
  • There are 80 sixth graders at Wilson Middle School. Only 40% of the sixth g
    9·1 answer
  • PLEASE HELP Find the annual simple interest rate. I=$17, P=$500, t=2years<br><br> I NEED ASAP
    11·1 answer
  • Here we go again: Each set of points are connected to form a line segment. What is the length of each?
    5·2 answers
  • Place the vocabulary words on the diagram to correctly identify the opposite, adjacent, and hypotenuse sides of the
    6·1 answer
  • I need help answering this question for trig equations. <br> Sec^2x+4secx=-4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!