How to Integrate cosx/((sinx)^2 + 1) with Respect to x

In summary, the general formula for finding the integral of a trigonometric function is ∫f(x)dx = F(x) + C, where F(x) is the antiderivative of f(x) and C is the constant of integration. The most commonly used trigonometric identity for solving integrals is the Pythagorean identity: sin²(x) + cos²(x) = 1. The process for evaluating integrals of trigonometric functions involves using trigonometric identities and substitution to simplify the expression, followed by using integration techniques such as u-substitution, integration by parts, or trigonometric substitution to solve for the integral. Yes, the integral of a trigonometric function can be negative if the function
  • #1
tmozam
4
0
how do i integrate -- cosx/((sinx)^2 + 1) with respect to x
thanks for your help
 
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  • #2
Set u=sin(x)
 
  • #3
oh wow , why didnt i think of that ?
thanks alot
 
  • #4
what is the integral of ∫ cosx/(sinx)^9 with respect to x.
i think this one is a bit challenging
 
  • #5
Just let u = sin(x) again...
 
  • #6
how about integral of 10^x with respect to x
 
  • #7
write [itex]10^x = e^{xln10}[/itex]
 
  • #8
Or, set u=10^x
 

What is the general formula for finding the integral of a trigonometric function?

The general formula for finding the integral of a trigonometric function is ∫f(x)dx = F(x) + C, where F(x) is the antiderivative of f(x) and C is the constant of integration.

What is the most commonly used trigonometric identity for solving integrals?

The most commonly used trigonometric identity for solving integrals is the Pythagorean identity: sin²(x) + cos²(x) = 1.

What is the process for evaluating integrals of trigonometric functions?

The process for evaluating integrals of trigonometric functions involves using trigonometric identities and substitution to simplify the expression, followed by using integration techniques such as u-substitution, integration by parts, or trigonometric substitution to solve for the integral.

Can the integral of a trigonometric function be negative?

Yes, the integral of a trigonometric function can be negative if the function has a negative area under the curve. This can occur when the function is below the x-axis or when the function oscillates between positive and negative values.

How can integrals of trigonometric functions be applied in real life?

Integrals of trigonometric functions can be applied in various fields such as engineering, physics, and economics. For example, in engineering, integrals of trigonometric functions are used to calculate the area under a curve to determine the amount of work done by a force. In physics, they are used to calculate the displacement, velocity, and acceleration of an object in motion. In economics, they are used to model and analyze cyclical patterns in data.

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