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WB JEE 2024

MCQ+1 / -0.252024

\(a_n x^n+a_1 x^{n-1}+\ldots .+a_{n-1} x+a_n=0\left(a_0, a_1, \ldots . a_n \in \mathbb{R}, a_0 \neq 0\right)\) সমীকরণের একটি বীজ \(\cos \theta+i \sin \theta(\theta \in \mathbb{R})\) হলে \(a_1 \sin \theta+a_2 \sin 2 \theta+\ldots .+a_n \sin n \theta\) এর মান হবে

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