Q.15 Given f(z)= the real part of a complex number z. For example, f(3-4i)=3. If a∈N, n∈N, then the value of ∑ₙ₌₁⁶ᵃlog ₂ [f{(1+ i√3)}ⁿ ]has value equal to A. 18a² +9a B. 18a² + 7a C. 18a²- 3a D. 18a² -a

Lokesh Gaikwad , 7 Years ago

Grade 11