Answer: A
Step-by-step explanation:
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:

Answer:
Angle BEA
Step-by-step explanation:
They share the same straight line and their degrees add to 180
Answer:
54
Step-by-step explanation: