fill_in_multiple_blanks_questionAI 解答
Question texta) Choose an appropriate substitution, [math: u], to find the integral [math: ∫(6x+2)3x2+2x+3]\displaystyle\int{\left(6\,x+2\right)\,\sqrt{3\,x^2+2\,x+3}} [math: dx] .
[math: u=] [input] ...
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