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JEE Advanced 2021
Paper-1
Question
Let $\theta_1, \theta_2, \ldots, \theta_{10}$ be positive valued angles (in radian) such that $\theta_1+\theta_2+\ldots+\theta_{10}=2 \pi$. Define the complex numbers $\mathrm{z}_1=\mathrm{e}^{\mathrm{e}}, \mathrm{z}_{\mathrm{k}}=\mathrm{z}_{\mathrm{k}-1} \mathrm{e}^{\mathrm{ec}}$ for $\mathrm{k}=2,3, \ldots, 10$, where $\mathrm{i}=\sqrt{-1}$. Consider the statements P and Q given below : $$ \begin{aligned} & P:\left|z_2-z_1\right|+\left|z_3-z_2\right|+\ldots . .+\left|z_{10}-z_9\right|+\left|z_1-z_{10}\right| \leq 2 \pi \\ & Q:\left|z_2^2-z_1^2\right|+\left|z_3^2-z_2^2\right|+\ldots . .+\left|z_{10}^2-z_9^2\right|+\left|z_1^2-z_{10}^2\right| \leq 4 \pi \end{aligned} $$ Then.
Select the correct option:
A
P is TRUE and Q is FLASE
B
Q is TRUE and P is FLASE
C
both P and Q are TRUE
D
both P and Q are FLASE
✓ Correct! Well done.
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Solution
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Question Tags
JEE Advance
Mathematics
Hard
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