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Please solve this question.

If \((\sin \alpha) x^{2}-2 x+b \geq 2\)for all real values of \(x \leq 1\) and \(\alpha \in\left(0, \frac{\pi}{2}\right) \cup\left(\frac{\pi}{2}, \pi\right)\), then the possible real values of b is/are

(a) 2

(b) 3

(c) 4

(d) 5

Updated Mon, 20 May 2019 02:56 pm

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