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  1. M

    Help please

    well known as one of the log laws is ln(a)-ln(b) = ln(a/b) so you can seperate them, this will give you... y=ln(2x+1)-ln(3x-7)... get it? so . dy/dx=2/(2x+1)-3/(3x-7) and yeh you simplify that onwards.:D just reply if u need more help
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