JEE MAIN - Mathematics Bengali (2022 - 29th July Evening Shift - No. 14)

অপেক্ষা $$f(x) = {\sin ^{ - 1}}\left( {{{{x^2} - 3x + 2} \over {{x^2} + 2x + 7}}} \right)$$ এর সংজ্ঞার অঞ্চল হল ঃ
$$[1,\infty )$$
$$[ - 1,2]$$
$$[ - 1,\infty )$$
$$( - \infty ,2]$$

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