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Calculus: Integral Applications
Basic applications of integrals
10
Mathematics
11th Grade
05/22/2011

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Term
Fundamental Theorem of Calculus
Definition
int(f'(x)dx,x,a,b)=f(b)-f(a)
Term
Second Fundamental Theorem of Calculus
Definition
(d/dx)[int(f(t)dt,t,c,u)]=f(u)*u'
Term
Average Value of f on [a,b]
Definition
1/(b-a)*int(f(x)dx,x,a,b)
Term
Riemann Sum
Definition
=f(x)*(x-x)+f(x)*(x-x)+...
-rectangle length is always positive
-if rectangle is above x-axis, height is positive
-if height is below x-axis, height is negative
Term
Differential Equations
Definition
-Separate Variables
-Integrate
-Input coordinates
-Find C
-Find K (if necessary)
-Solve for y
Term
Trapezoid Rule w/ equal subintervals
Definition
=(b-a)/(2*n)*[f(x)+2*f(x)+2(x)+...+2*f(x)+f(x)]
Term
Trapezoid Rule w/ unequal subintervals
Definition
1/(b-a)*[(f(x)+(f(x))/2*(x-x)+(f(x)+(f(x))/2*(x-x)+...]
Term
Area between two lines
Definition
Area=int(([top]-[bottom])dx,x,a,b)
Area=int(([right]-[left])dx,x,a,b)
Term
Volume by Revolution
Definition
Volume=π*int(([top]^(2)-[bottom]^(2))dx,x,a,b)
Volume=π*int(([right]^(2)-[left]^(2))dy,y,a,b)
Term
Volume by Cross Sections
Definition
Volume=int((area)dx,x,a,b)
Volume=int((area)dy,y,a,b)
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