Category:

Let's Play

Duration: 7:14

11 views

0

Prove by induction that for all natural number \( n \)
\[
\sin \alpha+\sin (\alpha+\beta)+\sin (\alpha+2 \beta)+\ldots+\sin (\alpha+\overline{n-1} \beta)=\frac{\sin \left(\alpha+\frac{n-1}{2} \beta\right) \sin \left(\frac{n \beta}{2}\right)}{\sin \left(\frac{\beta}{2}\right)}
\]
P
\( \mathrm{W} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live