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
Vika [28.1K]
3 years ago
15

Plz help

Mathematics
1 answer:
grandymaker [24]3 years ago
6 0
Cot x= cosx/sinx =√3
tan x= 1/ √3

cos x = √2 /2
x= 45
tan45= 1

tan x= -4/3

csc x= 13/5
1/sin x = 13/5
sin x= 5/13
x=22.62
tan x= 5/12
You might be interested in
SOMEONE PLZ HELP ME 1. What was the theoretical probability of collecting a specific dinosaur, such as a Velociraptor, in a sing
VMariaS [17]
3 multiply by 2x -5 it equal 27
8 0
3 years ago
Help me plz. You have to evaluate the expression.
Ray Of Light [21]

Answer:

2+4 + 0+ 1 = $7

Step-by-step explanation:

3 0
3 years ago
15. If x=a Sin2t (I+Cos2t) and y=b Cos 2t (1-Cos2t) then find<br>dy/dx at =22/7*4<br>​
Sav [38]

By the chain rule,

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm dt}\dfrac{\mathrm dt}{\mathrm dx}\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\frac{\mathrm dy}{\mathrm dt}}{\frac{\mathrm dx}{\mathrm dt}}

It looks like we're given

\begin{cases}x=a\sin(2t)(1+\cos(2t))\\y=b\cos(2t)(1-\cos(2t))\end{cases}

where <em>a</em> and <em>b</em> are presumably constant.

Recall that

\cos^2t=\dfrac{1+\cos(2t)}2

\sin^2t=\dfrac{1-\cos(2t)}2

so that

\begin{cases}x=2a\sin(2t)\cos^2t\\y=2b\cos(2t)\sin^2t\end{cases}

Then we have

\dfrac{\mathrm dx}{\mathrm dt}=4a\cos(2t)\cos^2t-4a\sin(2t)\cos t\sin t

\dfrac{\mathrm dy}{\mathrm dt}=-4b\sin(2t)\sin^2t+4b\cos(2t)\sin t\cos t

\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{4b\cos(2t)\sin t\cos t-4b\sin(2t)\sin^2}{4a\cos(2t)\cos^2t-4a\sin(2t)\cos t\sin t}

\implies\boxed{\dfrac{\mathrm dy}{\mathrm dx}=\dfrac ba\tan t}

where the last reduction follows from dividing through everything by \cos(2t)\cos^2t and simplifying.

I'm not sure at which point you're supposed to evaluate the derivative (22/7*4, as in 88/7? or something else?), so I'll leave that to you.

8 0
3 years ago
If 4 cookies cost $4.00, how much does 1 cookie cost?
Mkey [24]

Answer:

1 dollar

Step-by-step explanation:

6 0
3 years ago
What is the least perimeter of a rectangle with an area of 39 square feet
Gekata [30.6K]
Ths answer is 80 squared feet
5 0
3 years ago
Other questions:
  • How days Feb 7 through Dec 23 or to Feb 7?
    8·1 answer
  • 11/14 minus what is equal to 4/14
    8·2 answers
  • 9/16=27/x proportions?
    7·1 answer
  • Can someone please check my answer????
    11·1 answer
  • Mai skated x miles, and Clare skated 3/4 farther than that. Write an expression for the distance Clare skated. You may use fract
    13·1 answer
  • Question 8 thank youuu
    15·2 answers
  • Please choose the option that would best fit the empty space above: Group of answer choices only one optimal solution multiple o
    13·1 answer
  • Find the slope y-intercept of each line. Write the equation of the line please help
    15·1 answer
  • Much help needed thanks!
    14·1 answer
  • Determine whether each graph represents a linear or nonlinear function. Use the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!