1 / | | 2*x + 3 | ------- dx | x + 1 | / 0
Integral((2*x + 3)/(x + 1), (x, 0, 1))
There are multiple ways to do this integral.
Let .
Then let and substitute :
Let .
Then let and substitute :
Rewrite the integrand:
Integrate term-by-term:
The integral of a constant is the constant times the variable of integration:
The integral of is .
The result is:
Now substitute back in:
Now substitute back in:
Rewrite the integrand:
Integrate term-by-term:
The integral of a constant is the constant times the variable of integration:
Let .
Then let and substitute :
The integral of is .
Now substitute back in:
The result is:
Rewrite the integrand:
Integrate term-by-term:
The integral of a constant times a function is the constant times the integral of the function:
Rewrite the integrand:
Integrate term-by-term:
The integral of a constant is the constant times the variable of integration:
The integral of a constant times a function is the constant times the integral of the function:
Let .
Then let and substitute :
The integral of is .
Now substitute back in:
So, the result is:
The result is:
So, the result is:
The integral of a constant times a function is the constant times the integral of the function:
Let .
Then let and substitute :
The integral of is .
Now substitute back in:
So, the result is:
The result is:
Add the constant of integration:
The answer is:
/ | | 2*x + 3 | ------- dx = 2 + C + 2*x + log(2 + 2*x) | x + 1 | /
2 + log(2)
=
2 + log(2)
2 + log(2)
Use the examples entering the upper and lower limits of integration.