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
natita [175]
3 years ago
5

!! AP CALCULUS AB !! find the limit of [(secx*sinx) + (cscx*cosx)]/(3secx) as x approaches 3pi/2

Mathematics
1 answer:
uysha [10]3 years ago
6 0

f(x)= \frac{\frac{\sin{x}}{\cos{x}}+\frac{\cos{x}}{\sin{x}}}{3\sec{x}}

\frac{\frac{\sin{x}}{\cos{x}}+\frac{\cos{x}}{\sin{x}}}{3\sec{x}} \implies \\ \frac{\sin^2{x}+\cos^2{x}}{\sin{x}\cos{x}}\frac{\cos{x}}{3}\implies \\\frac{1}{\sin{x}\cos{x}}*\frac{\cos{x}}{3}\implies \\ \frac{1}{3\sin{x}}

So,

\lim_{x \rightarrow \frac{3\pi}{2}}{f(x)=f(\frac{3\pi}{2})=\frac{1}{3\sin{\frac{3\pi}{2}}}=-\frac{1}{3}

You might be interested in
How do you square -2square root 5 and what is the final answer?
Fofino [41]
The answer is :
-4.472135...
6 0
3 years ago
PLZ ANSWER ASAP IN NEED OF ANSWERS WILL AWARD BRAINLIEST!!!
Angelina_Jolie [31]

Answer:

△ABC is congruent to △YZX

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP ASAP 35 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
Semenov [28]

Answer:

(5,2,2)

Step-by-step explanation:

-3x+4y+2z = -3

2x-4y-z=0

y = 3x-13


Multiply the second equation by 2

2*(2x-4y-z)=0*2

4x -8y -2z =0

Add this to the first equation to eliminate z

-3x+4y+2z = -3

4x -8y -2z =0

-------------------------

x -4y = -3

Take the third equation and substitute it in for y

x - 4(3x-13) = -3

Distribute the 4

x - 12x +52 = -3

Combine like terms

-11x +52 = -3

Subtract 52 from each side

-11x +52-52 = -3-52

-11x = -55

Divide by -11

-11x/-11 = -55/-11

x=5

Now we can solve for y

y =3x-13

y =3*5 -13

y = 15-13

y=2

Now we need to find z

2x-4y-z=0

2(5) -4(2) -z=0

10-8 -z=0

2-z=0

Add z to each side

2-z+z= 0+z

2=z

x=5, y=2, z=2

(5,2,2)

3 0
2 years ago
Which letter on the diagram below represents the name of the circle?
Alik [6]

Answer:  (b) A

<u>Step-by-step explanation:</u>

A: the center of the circle

B: the diameter of the circle

C: the radius of the circle

D: <em>not sure, could be the perimeter</em>

<em />

Circles are named by their center, so this is named "Circle A".

6 0
3 years ago
Read 2 more answers
PLZ HELP ASAP WILL MARK BRAINLIEST
Mkey [24]

DEF will be 2.68

EF will be .67

3 0
3 years ago
Other questions:
  • Jackson's mom limits the amount of time he is allowed to play video games after Jackson plays for 9 minutes his mom tells him th
    8·1 answer
  • I need 5 brainlists. Its sooo hard to get even two HELP.
    8·1 answer
  • Plsss he helppp fasttttt
    9·2 answers
  • Which expressions have the same solution as –4(6)?
    9·1 answer
  • Which one should I choose
    11·1 answer
  • Use the simple interest formula to find the interest earned for $347 at 9.63% for 5 years
    13·1 answer
  • HURRY WILL MARK YOU BRAINLIEST
    7·1 answer
  • Help me please.<br><img src="https://tex.z-dn.net/?f=help%20%5C%3A%20%20me" id="TexFormula1" title="help \: me" alt="help \: m
    8·1 answer
  • How do i solve this?​
    12·1 answer
  • Find m∠1.<br><br>A) 103°<br><br>B) 13°<br><br>C) 77°<br><br>D) 26°
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!