Answer:
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Answer:
Step-by-step explanation:
Multiply the first term by
, the second term by
, the third term by
.
<u>The first term becomes:</u>
<u>The second term becomes:</u>
<u>The third term becomes:</u>
<u>Their sum is:</u>
Correct choice is B
Answer:

Step-by-step explanation:

Given integral:



Using <u>integration by parts</u>:


Therefore:





Therefore:



Divide both sides by 2:

Rewrite in the same format as the given integral:
