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

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

The value of sum_(k=1)^(6)("sin"(2pik)/(7)-I"cos"(2pik)/(7)) is

The value of Sigma_(i=1)^(6) (sin .(2pik)/(7)-i cos .(2pik)/(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

Find the value of sum_(k=1)^10[sin((2pik)/(11))-icos((2pik)/(11))],wherei=sqrt(-1).

Find the value of sum_(k=1)^10[sin((2pik)/(11))-icos((2pik)/(11))],wherei=sqrt(-1).