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
Paladinen [302]
3 years ago
8

Find the derivative: y={ (3x+1)cos(2x) } / e^2x​

Mathematics
1 answer:
DochEvi [55]3 years ago
6 0

Answer:

\displaystyle y' = \frac{3cos(2x) -2(3x + 1)[sin(2x) + cos(2x)]}{e^{2x}}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Factoring
  • Exponential Rule [Dividing]:                                                                         \displaystyle \frac{b^m}{b^n} = b^{m - n}
  • Exponential Rule [Powering]:                                                                       \displaystyle (b^m)^n = b^{m \cdot n}

<u>Calculus</u>

Derivatives

Derivative Notation

Derivative of a constant is 0

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Product Rule:                                                                                                         \displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)

Quotient Rule:                                                                                                       \displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}

Trig Derivative:                                                                                                       \displaystyle \frac{d}{dx}[cos(u)] = -u'sin(u)

eˣ Derivative:                                                                                                         \displaystyle \frac{d}{dx}[e^u] = u'e^u

Step-by-step explanation:

<u>Step 1: Define</u>

\displaystyle y = \frac{(3x + 1)cos(2x)}{e^{2x}}

<u>Step 2: Differentiate</u>

  1. [Derivative] Quotient Rule:                                                                           \displaystyle y' = \frac{\frac{d}{dx}[(3x + 1)cos(2x)]e^{2x} - \frac{d}{dx}[e^{2x}](3x + 1)cos(2x)}{(e^{2x})^2}
  2. [Derivative] [Fraction - Numerator] eˣ derivative:                                       \displaystyle y' = \frac{\frac{d}{dx}[(3x + 1)cos(2x)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{(e^{2x})^2}
  3. [Derivative] [Fraction - Denominator] Exponential Rule - Powering:         \displaystyle y' = \frac{\frac{d}{dx}[(3x + 1)cos(2x)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{e^{4x}}
  4. [Derivative] [Fraction - Numerator] Product Rule:                                       \displaystyle y' = \frac{[\frac{d}{dx}[3x + 1]cos(2x) + \frac{d}{dx}[cos(2x)](3x + 1)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{e^{4x}}
  5. [Derivative] [Fraction - Numerator] [Brackets] Basic Power Rule:             \displaystyle y' = \frac{[(1 \cdot 3x^{1 - 1})cos(2x) + \frac{d}{dx}[cos(2x)](3x + 1)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{e^{4x}}
  6. [Derivative] [Fraction - Numerator] [Brackets] (Parenthesis) Simplify:       \displaystyle y' = \frac{[3cos(2x) + \frac{d}{dx}[cos(2x)](3x + 1)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{e^{4x}}
  7. [Derivative] [Fraction - Numerator] [Brackets] Trig derivative:                   \displaystyle y' = \frac{[3cos(2x) -2sin(2x)(3x + 1)]e^{2x} - 2e^{2x}(3x + 1)cos(2x)}{e^{4x}}
  8. [Derivative] [Fraction - Numerator] Factor:                                                   \displaystyle y' = \frac{e^{2x}[(3cos(2x) -2sin(2x)(3x + 1)) - 2(3x + 1)cos(2x)]}{e^{4x}}
  9. [Derivative] [Fraction] Simplify [Exponential Rule - Dividing]:                     \displaystyle y' = \frac{3cos(2x) -2sin(2x)(3x + 1) - 2(3x + 1)cos(2x)}{e^{2x}}
  10. [Derivative] [Fraction - Numerator] Factor:                                                   \displaystyle y' = \frac{3cos(2x) -2(3x + 1)[sin(2x) + cos(2x)]}{e^{2x}}

Topic: AP Calculus AB/BC

Unit: Derivatives

Book: College Calculus 10e

You might be interested in
Write the contrapositive and the converse of the following conditional
Lunna [17]

The contrapositive statement are:

  • If the lake is frozen, then it isn't cold.
  • If Solomon is happy, then  he isn't healthy.
  • If Tigist  does not take a walk, then it will not rain

<h3>What is the converse statement?</h3>

The  converse statement are:

  • If the late is frozen, then it is cold.
  • If Solomon is happy, then he is healthy.
  • If Tigist Tigist  does not take a walk, then it will rain.

Note that the converse of a statement is created by the act of switching the hypothesis given and also the conclusion.

Therefore, The contrapositive statement are

  • If the lake is frozen, then it isn't cold.
  • If Solomon is happy, then  he isn't healthy.
  • If Tigist  does not take a walk, then it will not rain

Learn more about contrapositive statement  from

brainly.com/question/1713053

#SPJ1

6 0
2 years ago
Read 2 more answers
last week you sold 30,45,50,75 and 80 units each day of the week in that order . On average how many units did you sell per day?
Butoxors [25]

Answer:

56 units

Step-by-step explanation:

add all numbers then divide by 5

30+45+50+75+80 = 280

280/5 = 56

4 0
3 years ago
Natasha ran 3.1 kilometers. Tonya ran 4 meters more than half as far as Natasha. How many meters did Tonya run?
Levart [38]
The answer would be idk
So it 5.6
4 0
3 years ago
if anyone could help me to figure out whether or not this is correct i would appreciate that. thank you :)
hram777 [196]
450 with an exponent of 3 equals -1425 so I think u are right
3 0
3 years ago
Read 2 more answers
Please help me vote you brainiest
ahrayia [7]

Answer:

3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • If the area of a park is exactly halfway between 2.4 and 2.5 acres what is the area of the park
    12·2 answers
  • X divided by 7 = -3 Solve for x
    11·2 answers
  • What is the graph of g?
    14·1 answer
  • Circle G is inscribed with triangle E F D. Point C is on the circle between points E and F. Angle E is 79 degrees. The measure o
    15·2 answers
  • Gisele trains 7 days per week for a biathlon. She covers a total of 20 miles cycling and running each day. Gisele cycles a total
    9·2 answers
  • Express sinV as a fraction and as a decimal to the nearest hundredth
    9·1 answer
  • What is the approximate distance between points A and B?
    6·1 answer
  • Find the area of this composite figure
    6·1 answer
  • X2-11x+18=0 need help!
    13·2 answers
  • Incorrect
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!