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JEE Mains · Maths · STD 11 - 4.1 complex nubers

જો \(z_1, z_2, z_3 \in C\) સમબાજુ ત્રિકોણના શિરોબિંદુઓ હોય, જેનું મધ્યકેન્દ્ર \(\mathrm{z}_0\) હોય, તો \(\sum_{\mathrm{k}=1}^3\left(\mathrm{z}_{\mathrm{k}}-\mathrm{z}_0\right)^2\) = __________

  1. A \(0\)
  2. B \(1\)
  3. C i
  4. D \(-\mathrm{i}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(0\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \mathrm{z}_1+\mathrm{z}_2+\mathrm{z}_3=3 \mathrm{z}_0 \\ & \left(\mathrm{z}_1+\mathrm{z}_2+\mathrm{z}_3\right)^2=9 \mathrm{z}_0^2 \\ & \Rightarrow \mathrm{z}_1^2+\mathrm{z}_2^2+\mathrm{z}_3^2+2\left(\mathrm{z}_1^2+\mathrm{z}_2^2+\mathrm{z}_3^2\right)=9…

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