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If a² + b² + c² + d² = 25, out of the following statements the correct one is : (1)ab + bc + cd + da < 25(2)ab + bc + cd + da > 25(3)ab + bc + cd + da < 25/2(4)ab + bc + cd + da > 25/2 |
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Answer» If a² + b² + c² + d² = 25, out of the following statements the correct one is : (1)ab + bc + cd + da < 25 (2)ab + bc + cd + da > 25 (3)ab + bc + cd + da < 25/2 (4)ab + bc + cd + da > 25/2 |
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