Mathematics Homework Help

I don’t understand this Calculus question and need help to study.

1. The indefinite integral is another term for the family of all antiderivatives of a function.
2. Substitution can often be used to turn a complicated integral into a simpler one
3. Substitution can often be used to turn a complicated integral into a simpler one.
4. The definite integral gives an approximation to the area under a curve.
5. The definite integral of a positive function is the limit of the sum of the areas of rectangles.
6. The Fundamental Theorem of Calculus gives a relationship between the definite integral and an antiderivative of a function.