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
marysya [2.9K]
2 years ago
7

Integral of sec (3x) tan (3x) dx

Mathematics
1 answer:
zhannawk [14.2K]2 years ago
5 0
\int {sec (3x)tan(3x)} \, dx= \int { \frac{1}{cos(3x)}* \frac{sin(3x)}{cos(3x)}  } \, dxSubstitution:u=cos(3x), du=-3sin(3x)dx, sin(3x)dx= du/-3 Integral becomes:\frac{-1}{3} *\int { \frac{1}{ u^{2} } } \, du= \frac{-1}{3} \int {u^{-2} } \, du=\frac{ u^{-1} }{3}= \frac{1}{3u}= \frac{1}{3cos(3x)}+C 
You might be interested in
Solve: 5(3x + 2) -2 = 2 (1 -7x)​
True [87]
X = -6/29 is the correct answer
5 0
3 years ago
Read 2 more answers
Evaluate using P E M D A S 2 x 3 + 4
Juli2301 [7.4K]

Step-by-step explanation:

We would do multiplication first, because of order of operations.

2x3=6

Now we add.

6+4=10

hope it helps! :3

8 0
3 years ago
Read 2 more answers
What is the volume of a cylinder with a height of 7.1 ft and a base with a diameter of 12.8 ft, to the nearest tenth of a cubic
Semenov [28]

Answer:

V=π(d

2)2h=π·(12.8

2)2·7.1≈913.62541ft³ Step-by-step explanation: because i said so

7 0
3 years ago
The scale on a map is 1 inch : 500 miles.
Radda [10]
875 miles times 500 miles per one inch, equals 1.75 inches on the map!
6 0
3 years ago
Please answer correctly ,50 PoiNTs
Mariana [72]
The average temperature increased from day 5 through day 7.

answer choice b is the correct answer.

if you look at the chart you see how the temp. increases throughout said days. :)
6 0
2 years ago
Read 2 more answers
Other questions:
  • How do you show 40 fewer than a number t?
    11·1 answer
  • The perimeter of a regular hexagon depends on the length of its side. Write the formula that describes this perimeter as the fun
    13·1 answer
  • Find the perimeter of the rectangle whose lenth is 24cm and diagonal is 25cm​
    14·1 answer
  • Please help<br>thank youuuu
    6·1 answer
  • What is 345.432 minus two hundredths ?
    13·1 answer
  • The diameter of a small grain of sand is about 0.00002 meters, which can be written as 2•10^n
    15·2 answers
  • All i need is the slope
    9·1 answer
  • solve the equation: the booster club of the baseball team bought pizza to sell at a concession stand. the school donated three p
    15·1 answer
  • Which statement is true for the scatter plot?
    5·1 answer
  • In a group of 25 students at lunch, 10 prefer ketchup on their hamburger, 10 prefer mustard on
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!