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A. (iv)
B.
None
of the
other
choices
IS
correct
Find the range of the function
f(x) = x² + 2x² + 1.
(i) (0,∞)
(ii) [0, ∞)
(iii) (1,∞)
C. (ii)
D. (iii)
E. (i)
(iv) [1,∞)
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