The command '\int ... d?' is for indefinite integral, instead of the dots you should use the integrand and instead of ? - the variable of integration.

To check yourself enter the following formula in TeX:

To represent a definite integral use the command '\int_{...}^{...} ... d?', the first dots is for lower limit, the second is for upper limits and the rest placeholders mean the same as in indefinite integral (integrand and variable of integration).

For upper and lower limits any expression is allowed. To insert infinity (∞) use the '\infty' command.

To test the mastery of the material write the following formula in TeX format: