JEE Math Practice Question
The sum of the solutions $$x \in \mathbb{R}$$ of the equation $$\frac{3 \cos 2 x+\cos ^3 2 x}{\cos ^6 x-\sin ^6 x}=x^3-x^2+6$$ is
- A.3
- B.1
- C.0
- D.$$-$$1
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