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Find: int(3x-1)/(sqrt(x^2-4x))dx

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Question

Find: `int(3x-1)/(sqrt(x^2-4x))dx`

Sum
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Solution

`int(3x-1)/(sqrt(x^2-4x))dx`

= `int(3/2(2x-4)+5)/(sqrt(x^2-4x))dx`

= `3/2int(2x-4)/(sqrt(x^2-4x))dx+5int1/(sqrt(x^2-4x+2^2-2^2))dx`

= `3/2sqrt(x^2-4x)+5int1/(sqrt((x-2^2))-2^2)dx`

= `3sqrt(x^2-4x)+5log|(x-2)+sqrt(x^2-4x)|+C`

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2025-2026 (March) 65/2/3
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