Integral- Without using integration technnique

In summary: And again, what have you tried?In summary, the conversation discusses the possibility of solving the integral \int tan(t)sec^3(t)dt without using integration techniques such as substitution and integration by parts. The participants also provide a hint for solving the integral and suggest using the power rule, but ultimately conclude that integration techniques are necessary for solving the integral.
  • #1
Chipset3600
79
0
Hello MHB, how can i solve this without use integration technniques...

[TEX]\int tan(t)sec^3(t)dt[/TEX]
 
Physics news on Phys.org
  • #2
Re: Integral- Without use integration technnique

Chipset3600 said:
Hello MHB, how can i solve this without use integration technniques...

[TEX]\int tan(t)sec^3(t)dt[/TEX]

How do you mean "without using integration techniques"? Surely you need integration techniques to solve an integral? Also what have you tried?

Hint: Let $u = \sec(t) = \frac{1}{\cos(t)}$
 
  • #3
Re: Integral- Without use integration technnique

SuperSonic4 said:
How do you mean "without using integration techniques"? Surely you need integration techniques to solve an integral? Also what have you tried?

Hint: Let $u = \sec(t) = \frac{1}{\cos(t)}$

I mean without: substitution, integration by parts...
 
  • #4
Re: Integral- Without use integration technnique

I'm not sure that is possible, this is not an elementary integral (in the sense that it is the derivative of an elementary function, such as $\cos x$, $\sin x$, $\tan x$ and so on).
 
  • #5
Re: Integral- Without use integration technnique

Hello, Chipset3600!

How can i solve this without use integration technniques?

. . [TEX]\int \tan\theta \sec^3\!\theta\,d\theta[/TEX]

Well, maybe you can see all this?If we have: .[tex]f(x) \:=\:\tfrac{1}{3}\sec^3\!\theta + C[/tex]

Then: .[tex]f'(x) \:=\:\tfrac{1}{3}\cdot 3\sec^2\!\theta\cdot\sec\theta\tan\theta + 0 \;=\;\tan\theta\sec^3\!\theta [/tex]
 
  • #6
Re: Integral- Without use integration technnique

soroban said:
Hello, Chipset3600!


Well, maybe you can see all this?If we have: .[tex]f(x) \:=\:\tfrac{1}{3}\sec^3\!\theta + C[/tex]

Then: .[tex]f'(x) \:=\:\tfrac{1}{3}\cdot 3\sec^2\!\theta\cdot\sec\theta\tan\theta + 0 \;=\;\tan\theta\sec^3\!\theta [/tex]

[TEX]\int tan(t).sec^3(t)dt = \int sec^2(t).sec(t).tan(t)dt[/TEX]Using the power rule now:[TEX]\frac{sec^3(t)}{3}+C[/TEX]
 
  • #7
Re: Integral- Without use integration technnique

You don't have a polynomial to apply the power rule, at least not until you use substitution.
 

FAQ: Integral- Without using integration technnique

What is the definition of an integral without using integration technique?

An integral without using integration technique is a mathematical concept that represents the area under a curve without using traditional integration methods. It is often used as an alternative method for finding the area under a curve when traditional integration techniques are not applicable.

How is an integral without using integration technique calculated?

An integral without using integration technique is typically calculated by dividing the area under the curve into smaller, simpler shapes, such as rectangles or triangles. The area of each shape is then calculated individually and added together to approximate the total area under the curve.

What are the limitations of using an integral without integration technique?

One limitation of using an integral without integration technique is that it can only approximate the area under a curve, rather than providing an exact value. Additionally, this method may not work for more complex functions or curves with irregular shapes.

How is an integral without using integration technique different from traditional integration methods?

The main difference between an integral without using integration technique and traditional integration methods is the approach used to calculate the area under a curve. While traditional integration methods involve finding the antiderivative of a function, an integral without integration technique uses geometric shapes to approximate the area.

In what situations would it be beneficial to use an integral without using integration technique?

An integral without using integration technique may be beneficial in situations where traditional integration methods are not applicable or too complex. This method can also be useful for quickly estimating the area under a curve, as it does not require advanced mathematical knowledge or complex calculations.

Similar threads

Back
Top