Do B < 6 and B^2 < 36 have the same solution set?
回答 (3)
2016-09-30 4:25 am
No. Think about B=-7.
2016-09-29 10:42 pm
No.
B^2 < 36 has the solution set
.. -6 < B < 6
B^2 < 36 has the solution set
.. -6 < B < 6
2016-09-29 8:38 pm
All B ≤ -6 satisfy the first inequality, but not the second.
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