19.98 * 21.21 ÷ √145 = ?3 + (1.98)3
A.1
B.3
C.5
D.4
E.7
Sol:
19.98 * 21.21 ÷ √145 = ?3 + (1.98)3
20 * 21/12 = ?3 + 8
? = 3
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