\\( { }^{12} P_{r}={ }^{11} P_{6}+6 .{ }^{11} P_{5} \\) then \\( r \\)....
Channel:
Subscribers:
453,000
Published on ● Video Link: https://www.youtube.com/watch?v=hTA5QULdY4s
\\( { }^{12} P_{r}={ }^{11} P_{6}+6 .{ }^{11} P_{5} \\) then \\( r \\) 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live