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The correct option is A -2 ≤ x ≤ 2
the value of x should be such that the square of the given expression in x must not be negative.
4 – x2 ≥ 0
⇒ X2 – 4 ≤ 0
⇒ -2 ≤ x ≤ 2
-2 ≤ x ≤ 2
the value of x should be such that the square of the given expression in x must not be negative.
4 – x2 ≥ 0
⇒ X2 – 4 ≤ 0
⇒ -2 ≤ x ≤ 2
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