atthetone6790 atthetone6790

31-01-2024
Mathematics

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If a,b,c,d are positive real numbers, such that a+b+c+d=2, then M=(a+b)(c+d) satisfies the
A.0≤M≤1
B.1≤M≤2
C.2≤M≤3
D.3≤M≤4

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