A Standard High School Math Workbook Qishen Huang. (c) This is generalization of part (1). Because a ab and a + b 2 are positive, we compare their squares. ( a + b 2 = a2 + b2 + 2ab 2 ) a( a ab)2 a ab 4 ay 0. Then ( a + b 2 ) 2 Hence, a + banbsp;...
|Title||:||SAT / ACT Math and Beyond|
|Publisher||:||Qishen Huang - 2008-06|