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Choose the correct answer intsqrt(x^2-8x...

Choose the correct answer `intsqrt(x^2-8x+7)dx` (A) `1/2(x-4)sqrt(x^2-8x+7)+9log|x-4+sqrt(x^2-8x+7)|+C` (B) `1/2(x+4)sqrt(x^2-8x+7)+9log|x+4+sqrt(x^2-8x+7)|+C` (C) `1/2(x-4)sqrt(x^2-8x+7)-3sqrt(2)log|x-4+sqrt(x^2-8x+7)|+C` (D) `1/2(x-4)sqrt(x^2-8x+7)-

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The correct Answer is:
`-9/2`
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