1 / | | x | ------------ dx | _________ | / 2 | \/ x + 49 | / 0
Integral(x/sqrt(x^2 + 49), (x, 0, 1))
Let .
Then let and substitute :
The integral of a constant is the constant times the variable of integration:
Now substitute back in:
Now simplify:
Add the constant of integration:
The answer is:
/ | _________ | x / 2 | ------------ dx = C + \/ x + 49 | _________ | / 2 | \/ x + 49 | /
___ -7 + 5*\/ 2
=
___ -7 + 5*\/ 2
-7 + 5*sqrt(2)
Use the examples entering the upper and lower limits of integration.