complex numbers

if z= x+iy then ans the following questions,z is the conjugate of z

1.what will be argument of (z+z/2)

2. what will be the aurgument of (z - z/2)

1 Answers

u=z+z/2= Re(z) => arg(u) =0

u=z-z/2 =- Im (z) => arg(u) = Ï€+arg(z)

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω