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jy asked in Science & MathematicsMathematics · 1 decade ago

Pls help on Integration...?

What the ans of integration of (2x - 1) ?

Pls show working...

it will be good if anyone can recommand gd integration website.

2 Answers

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  • 1 decade ago
    Favorite Answer

    Integrate (2x-1)dx

    will give you

    (2x^2)/2-1x+c

    (2x^2)/2 -1x + c (remember the constant)

    _____________________

    Introduction to integration:

    The rule for differentiation is given as:

    y=x^n > dy/dx=nx^n-1

    Reversing this gives you the rule for integration:

    Integrating x^n with respect to x gives (x^n+1)/(n+1) + c

    You may find it helpful to remember the rule as:

    "Add 1 to the power and divide by the new power, then add a constant."

    So 1 will go to 1x

    So 1^2 will go to (1^3)/3

    So 1^3 will go to (1^4)/4

    and so on....

    REMEMBER THE ARBITRARY CONSTANT C

  • Anonymous
    1 decade ago

    ∫x^n(dx)=(x^(n+1))/(n+1)+c

    ∫(2x-1)dx=

    ((2x^2)/2)-((1x^1)/1)=

    (x^2)-x+c

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