题目
题目
多项填空题

Question texta) Choose an appropriate substitution, [math: u], to find the integral [math: ∫(15x2+5)5x3+5x+5]\displaystyle\int{\left(15\,x^2+5\right)\,\sqrt{5\,x^3+5\,x+5}} [math: dx] . [math: u=] [input] b) Find [math: dudx]\displaystyle \dfrac{du}{dx}. [math: dudx=]\displaystyle \dfrac{du}{dx}=[input] c) Hence, find the integral [math: ∫(15x2+5)5x3+5x+5]\displaystyle\int{\left(15\,x^2+5\right)\,\sqrt{5\,x^3+5\,x+5}} [math: dx] . Note: Type [math: c] for the integral constant. [math: f(x)=][input] Check Question 2

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思路分析
The task presents a three-part fill-in-the-blank process for evaluating the integral by substitution. We will examine the logical choices for each blank and explain why the chosen form is correct. First, consider part (a): selecting a substitution u to simplify the integral. The integrand is (15x^2+5) * sqrt(5x^3+......Login to view full explanation

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Question texta) Choose an appropriate substitution, [math: u], to find the integral [math: ∫(10x+2)5x2+2x+7]\displaystyle\int{\left(10\,x+2\right)\,\sqrt{5\,x^2+2\,x+7}} [math: dx] . [math: u=] [input] Your last answer was interpreted as follows: [math: 5x2+2x+7] 5\,x^2+2\,x+7 The variables found in your answer were: [math: [x]] \left[ x \right] b) Find [math: dudx]\displaystyle \dfrac{du}{dx}. [math: dudx=]\displaystyle \dfrac{du}{dx}=[input] c) Hence, find the integral [math: ∫(10x+2)5x2+2x+7]\displaystyle\int{\left(10\,x+2\right)\,\sqrt{5\,x^2+2\,x+7}} [math: dx] . Note: Type [math: c] for the integral constant. [math: f(x)=][input] Check Question 19

Question texta) Choose an appropriate substitution, [math: u], to find the integral [math: ∫(10x+5)5x2+5x+5]\displaystyle\int{\left(10\,x+5\right)\,\sqrt{5\,x^2+5\,x+5}} [math: dx] . [math: u=] [input] b) Find [math: dudx]\displaystyle \dfrac{du}{dx}. [math: dudx=]\displaystyle \dfrac{du}{dx}=[input] c) Hence, find the integral [math: ∫(10x+5)5x2+5x+5]\displaystyle\int{\left(10\,x+5\right)\,\sqrt{5\,x^2+5\,x+5}} [math: dx] . Note: Type [math: c] for the integral constant. [math: f(x)=][input] Check Question 19

Question texta) Choose an appropriate substitution, [math: u], to find the integral [math: ∫(15x2+2)5x3+2x+7]\displaystyle\int{\left(15\,x^2+2\right)\,\sqrt{5\,x^3+2\,x+7}} [math: dx] . [math: u=] [input] b) Find [math: dudx]\displaystyle \dfrac{du}{dx}. [math: dudx=]\displaystyle \dfrac{du}{dx}=[input] c) Hence, find the integral [math: ∫(15x2+2)5x3+2x+7]\displaystyle\int{\left(15\,x^2+2\right)\,\sqrt{5\,x^3+2\,x+7}} [math: dx] . Note: Type [math: c] for the integral constant. [math: f(x)=][input] Check Question 2

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