Friday, October 10, 2014

The fundamental theorem of calculus

The Fundamental Theorem of Calculus
Suppose  f  is continuous on  [a,b].
1   If  y=xaf(t)dt, then  dydx=f(x).
2 baf(t)dt=F(b)F(a), where  F  is an antiderivative of  f.

The theorem can be applied in many instances. One of which is as shown, for finding a function that increases or is concaved upwards.
The function  F  is increasing on the interval(s) where its derivative  f  is positive in value
The function  F  is concave up on the interval(s) where its derivative  f  is increasing


    Fundamental theorem of calculus



    Swapping the bounds for definite integral







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