R = 60
60^2 * pi = 3600 * pi
angle = 30°
3600pi / 30 = 120pi
the answer is 120 * pi
Answer:
<h2>61°</h2>
Step-by-step explanation:
Use the sine law:

We have:

Substitute:
<em>cross multiply</em>

<em>divide both sides by 6</em>

Answer:
B = 14pi
Step-by-step explanation:
I answered this but i couldn’t take multiple pictures. however i found a website with the same answer as me after i answered your question. here : https://www.quora.com/How-do-I-integrate-Integrate-sinxdx-sin-3x+cos-3x