Home > Algebra calculators > If f(x)=x(x+1) find f(x)-f(x-1) calculator

Method and examples
If f(x)=x(x+1) find f(x)-f(x-1) calculator

Method

1. Find Range of f:A->B
 f(x) = A = A = , x in N Z Q R , x is odd even prime
1. f(x)=5x+2 and A={1<=x<5; x in N; x is odd}
2. f(x)=3x-2 and A={x in N}
3. f(x)=|2x+1| and A={x in Z}
4. f(x)=x^3 and A={-2<=x<=2}
5. f(x)=sqrt(x) and A={1,4,16,36}
6. f(x)=x^2 and A={[1,5]}
7. f(x)=(-2)^x and A={x in N}
8. f(x)=sin(x) and A={0,30,90}
9. f(x)=(x^2+1)/(x+1) and A={-2,0,2}
10. f(x)=x^2-2x+3 and A={-1,3}

2. Composite functions and Evaluating functions
 f(x) = g(x) = Find fog(x) gof(x) f(x) g(x) Evaluate at x =

1. f(x)=x-1, g(x)=3x+5. Find fog(x).
2. f(x)=x+3, g(x)=x^2. Find gof(x).
3. f(x)=3x+1, g(x)=-x^2+5. Find gof(x).
4. f(x)=4x+1, g(x)=2x-3. Find gof(x).Also find gof(2).

3. Find value
 f(x) = Find

1. f(x)=x(x+1)(2x+1). Find f(x)-f(x-1).
2. f(x)=1/(x+1). Find f(-x)-f(x).
3. f(x)=1/x. Find f(x+1)-f(x-1).
4. f(x)=x^2-x. Find f(x+1)-f(x).
5. f(x)=2x-3. Find f(0)+f(1)+f(2).
6. f(x)=x^2-2^x. Find f(2)-f(0).
7. f(x)=(x^2+1)/(x^3-x+1). Find f(1)-f(0).
8. f(x)=2x-6. Find f(a-3)+f(a).
9. f(x)=(x-2)^2. Find f(x+2).

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