Solution: xn = cos (π/2n )+ i sin (π/2n) eiθ = cos θ+i sin θ Here θ = π/2n x1 = cos (π/2 )+ i sin (π/2) = ei(π/2) Similarly x2 =... View Article
Solution: Given z = cos θ + i sin θ = eiθ = sin θ+ sin 3θ+sin 5θ+.....+sin 29θ = sin ((θ+29θ)/2 )sin ((15×2θ)/2 )/ sin (2θ)/2 = sin... View Article