Use a table of integrals to evaluate the following indefinite

interdicoxd

interdicoxd

Answered question

2021-12-12

Use a table of integrals to evaluate the following indefinite integrals. Some of the integrals require preliminary work, such as completing the square or changing variables, before they can be found in a table.
3u2u+7du

Answer & Explanation

sonSnubsreose6v

sonSnubsreose6v

Beginner2021-12-13Added 21 answers

Step 1
Given: I=3u2u+7du
for evaluating given integral, we simplify given expression then integrate it
so,
I=3u2u+7du
=32uduu+72
=32(u+7272)du(u+72)
=32(172(u+72))du   (dxx+a=ln|x+a|+c)
=32[u72ln|u+72|]+c
Step 2
hence, given integral is equal to 32[u72ln|u+72|]+c.
rodclassique4r

rodclassique4r

Beginner2021-12-14Added 37 answers

3u2u+7du
Transform the expression
3v214vdv
Factor the expression
3(v7)4vdv
Use properties of integrals
34×v7vdv
Separate the fraction
34×vv7vdv
Divide
34×17vdv
Use properties of integrals
34×(1dv7vdv)
Evaluate the integrals
34×(v7ln(|v|))
Substitute back
34×(2u+77ln(|2u+7|))
Remove the parentheses
32u+214214×ln(|2u+7|)
Add c
Solution
32u+214214×ln(|2u+7|)+C

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