If a , b , c , d are positive real numbers such that a + b + c + d = 2, then M = ( a + b…
Mathematics · JEE Advanced · NTA Exams — Complex Numbers and Quadratic Equations
If a, b, c, d are positive real numbers such that
a + b + c + d = 2, then M = (a + b) (c + d) satisfies the relation
a + b + c + d = 2, then M = (a + b) (c + d) satisfies the relation
- 0 < M ≤ 1
- 1 ≤ M ≤ 2
- 2 ≤ M ≤ 3
- 3 ≤ M ≤ 4
Answer
(A) 0 M ≤ 1
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