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
AleksandrR [38]
2 years ago
7

Whats the awnser x-9.8=24

Mathematics
1 answer:
saveliy_v [14]2 years ago
8 0
The answer is x= 33.8
You might be interested in
How to find the derivative of cos^2x? i seem to be confused.
slamgirl [31]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2927231

————————

You can actually use either the product rule or the chain rule for this one. Observe:

•  Method I:

y = cos² x

y = cos x · cos x


Differentiate it by applying the product rule:

\mathsf{\dfrac{dy}{dx}=\dfrac{d}{dx}(cos\,x\cdot cos\,x)}\\\\\\
\mathsf{\dfrac{dy}{dx}=\dfrac{d}{dx}(cos\,x)\cdot cos\,x+cos\,x\cdot \dfrac{d}{dx}(cos\,x)}


The derivative of  cos x  is  – sin x. So you have

\mathsf{\dfrac{dy}{dx}=(-sin\,x)\cdot cos\,x+cos\,x\cdot (-sin\,x)}\\\\\\
\mathsf{\dfrac{dy}{dx}=-sin\,x\cdot cos\,x-cos\,x\cdot sin\,x}


\therefore~~\boxed{\begin{array}{c}\mathsf{\dfrac{dy}{dx}=-2\,sin\,x\cdot cos\,x}\end{array}}\qquad\quad\checkmark

—————

•  Method II:

You can also treat  y  as a composite function:

\left\{\!
\begin{array}{l}
\mathsf{y=u^2}\\\\
\mathsf{u=cos\,x}
\end{array}
\right.


and then, differentiate  y  by applying the chain rule:

\mathsf{\dfrac{dy}{dx}=\dfrac{dy}{du}\cdot \dfrac{du}{dx}}\\\\\\
\mathsf{\dfrac{dy}{dx}=\dfrac{d}{du}(u^2)\cdot \dfrac{d}{dx}(cos\,x)}


For that first derivative with respect to  u, just use the power rule, then you have

\mathsf{\dfrac{dy}{dx}=2u^{2-1}\cdot \dfrac{d}{dx}(cos\,x)}\\\\\\
\mathsf{\dfrac{dy}{dx}=2u\cdot (-sin\,x)\qquad\quad (but~~u=cos\,x)}\\\\\\
\mathsf{\dfrac{dy}{dx}=2\,cos\,x\cdot (-sin\,x)}


and then you get the same answer:

\therefore~~\boxed{\begin{array}{c}\mathsf{\dfrac{dy}{dx}=-2\,sin\,x\cdot cos\,x}\end{array}}\qquad\quad\checkmark


I hope this helps. =)


Tags:  <em>derivative chain rule product rule composite function trigonometric trig squared cosine cos differential integral calculus</em>

3 0
3 years ago
If n is a positive integer and the product all the integeres from 1 to n inclusive is a multiple of 990 what is the least possib
kolbaska11 [484]
Hello,

Since 990=2*3²*5*11 ==>n=11
6 0
3 years ago
three friends go to the movies and split the total cost between them. the total cost is $13.05 for movie tickets and $10.26 for
lakkis [162]
Total cost = $13.05 + 10.26
= $23.31
Indivdual pay = $23.31 / 3
= $7.77 each
6 0
3 years ago
Read 2 more answers
Factor the expression 48x+8 using the GCF
ololo11 [35]
<span> 48x+8 = 8(6x+1) </span>← Answer
3 0
3 years ago
Consider the function y = -2-3cos (x+pi). What effect does the -2 have on the basic graph
Elenna [48]

ANSWER

-2 shift the graph of the basic function down by 2 units.

EXPLANATION

The given cosine function is:

y =  - 2 - 3 \cos(x + \pi)

This equation can be rewritten as:

y =  - 3 \cos(x + \pi)  +  - 2

We compare this to

y = a \cos(bx + c)  + d

The effect d has on the graph is that, it shifts the graph up by d units.

If d is negative the graph shifts down by d units.

Since d=-2, the graph will shift down by 2 units.

5 0
3 years ago
Other questions:
  • The absolute value of any negative number is greater than zero True or False
    10·1 answer
  • (Picture) MULTIPLYING POLYNOMIALS AND SIMPLIFYING EXPRESSIONS PLEASE HELP!!!!
    15·1 answer
  • PLEASE Help!!!
    12·1 answer
  • Factor tree for number 119
    5·1 answer
  • A school is conducting a canned-food drive their goal is to collect 500 cans of food they have reached 6/8 of their goal how man
    9·1 answer
  • A circular garden has a diameter of 6 yards what is a area of the garden
    11·1 answer
  • The measure of BEC is .....<br>The measure of ABE is .....
    8·1 answer
  • P<br><img src="https://tex.z-dn.net/?f=p%202%20-%204p%20-%2012" id="TexFormula1" title="p 2 - 4p - 12" alt="p 2 - 4p - 12" align
    11·2 answers
  • Por qué 80 entre 5 sale 16​
    13·1 answer
  • Farhad George and Tom each did a test here are the marks for the test George drew this bar chart to show the mask they got the b
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!