Definite integral




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Newton´s definite integral:
In the definition above, F is a primitive function to f,
and a and b are the limits of the integral.
The result of definite integral is not a function, but a number!

Problems to solve - 1




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Find:

An area between two curves




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Let f(x) and h(x) be two curves, S an area between them.  And a and b their intersections.
Then S is given as follows:

1) Find an are between two curves:              and             .



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Graf 26


2) Find an are between two curves:               and             .

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1.
Graf 27