`prod_(k=1)^6(sin((2kpi)/7)-icos((2kpi)/7))=`

sum_(k=1)^6[sin((2kpi)/(7))-icos((2kpi)/(7))]=

I : sum_(k=1)^(6)[sin((2kpi)/(7))-icos((2kpi)/(7))]=i II : sum_(r=1)^(8)[sin((2pir)/(9))+icos((2pir)/(9))]=i Which of the above statements are true

The value of prod_(k=1)^6((sin)(2pik)/(7)-(icos)(2pik)/(7)) is

sum_(k=1)^6 (sin,(2pik)/7 -icos, (2pik)/7)=?

Find sum_(k=1)^6 (sin,(2pik)/7 -icos, (2pik)/7)=?

Find the value of sum_(k=1)^(10){sin((2kpi)/(11))-i cos ((2kpi)/(11))}

sum_(m=1)^(32)m[sum_(k=1)^(6)sin2k(pi)/(7)-i cos2k(pi)/(7)]

The value of sum_(k=1)^(6)[" sin"(2Kpi)/(7)- i " cos"(2Kpi)/(7)] is