Just like how **Differentiation is the slope of the tangent** drawn at a point on the curve**, Integration is the area **covered by the curve or a graph in a plane. Integration can be used to find areas and volumes below any curve.

**Example:Integrate the function: ∫x3dx**

So according to the above formula,

For the above example let’s go backwards,

Differentiate the function: y = x^{4}/4

** -> y’= x ^{3 }->**this is the question in the previous example to integrate!

** Hence differentiation and integration are reverse process to each other!**

**Example: Integrate the function ∫x ^{-2}dx**

∫x^{-2}dx= x^{-2+1}/-2+1

** -> x ^{-1}/-1 + c ->**

**-x**

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