Mathematics · 2019
JEE Main · 12 April 2019, Shift 2 · Q88
Let S be the set of all α ∈ R such that the equation, cos 2 x+α sin x=2 α-7 has a solution. Then S is equal to:
Let $\displaystyle S$ be the set of all $\displaystyle \alpha \in \mathbf{R}$ such that the equation, $\displaystyle \cos 2 x+\alpha \sin x=2 \alpha-7$ has a solution. Then S is equal to :
Official answer
(2)
[$\displaystyle 2$, $\displaystyle 6$]
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.