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
Ierofanga [76]
3 years ago
9

Plzz solve this easy calculus :')

Mathematics
1 answer:
Digiron [165]3 years ago
3 0

Answer:

\sin \: x -  \cos  x \:  + c

Step-by-step explanation:

\int \frac{cos2x}{ \sqrt{1 - sin2x} } dx \\  \\  =  \int \frac{ {cos}^{2}x -  {sin}^{2}x }  { \sqrt{ {sin}^{2}x +  {cos}^{2}x - 2sinx \: cosx  }  } dx \\  \\ =  \int \frac{ ({cos}x -  {sin}x )({cos}x  +   {sin}x )}  { \sqrt{  {({cos}x -  {sin}x )}^{2}  }  } dx \\  \\ =  \int \frac{ ({cos}x -  {sin}x )({cos}x  +   {sin}x )}  {{  {({cos}x -  {sin}x )} }  } dx \\  \\  =  \int({cos}x  +   {sin}x)dx \\  \\  = \int{cos}x  \: dx +    \int{sin}x \: dx \\  \\  =  \sin \: x -  \cos  x \:  + c

You might be interested in
What is -5/6 ÷ 9 /10 ?
vredina [299]
D: -25/27
-5/6  ÷  9/10  =  5/6  x   10/9   *when diving fractions, use recipricals.*
-5/6  ÷  10/9  =  - 25/27  *just multiply each numerator and denominator*
8 0
3 years ago
PLEASE HELP! Find the height of a cylinder with a surface area of 108 pi square meters. The radius of the cylinder is twice the
Naily [24]
Assuming the cylinder is closed at both ends 
Surface area = 2 pi r^2 + 2 pi r h  = 108

now h = r/2 so we have:-

 2pi r^2 +  pi r^2= 108

 3 pi r^2   = 108
r^2 = 11.459
r =  3.385 
so the height h = 1.693 m to nearest thousandth


7 0
3 years ago
At a summer camp, 5 out of 12 campers are signed up for horseback riding. If there are 432 campers at the camp, how many are sig
beks73 [17]

Answer:

The answer is 180.

Step-by-step explanation:

(5/12) x 432 = 180

4 0
2 years ago
The old city park is rectangular. It has a length of 350 meters. It has a width of 125 meters. What is the perimeter, in meters,
Natali5045456 [20]

(350x2=700) + (125x2=250) 700+250=950 so the perimeter is 950 meters long I hope this helps!

5 0
3 years ago
Can someone help me!?
butalik [34]

Answer:

A

Step-by-step explanation:

Set equation equal to 0

8 0
2 years ago
Other questions:
  • Which of the following statements are true?
    13·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST!!!!!!! This is the graph of f(x). What is the value of f(2)?
    7·1 answer
  • Which of the following shows the equation y = x2 + 8x + 14 in vertex form?
    9·1 answer
  • Follow these instructions to make your own triangle?
    9·1 answer
  • Solve for the indicated variable t+m=r for t
    6·1 answer
  • What is the domain of f(x)=(1/2)^x
    9·1 answer
  • 9. (a) Assume that the insulation around a rod is faulty in that the heat in each small slab leaks through the insulation at a r
    15·1 answer
  • Help me pls ill give extra points
    6·2 answers
  • PLEASE HELP WILL MARK BRAINLIEST!
    14·1 answer
  • A submarine starts at the surface of the Pacific Ocean and descends 60 feet
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!