Question

its math
give me the crt answer
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Answer 1

Answer:

hi

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Answer 2

Answer:

In ∆ BCD,

BC+CD > BD_____(1)

In ∆ACD,

AD+ CD >AC_____(2)

In ∆ ABD,

AB + AD > BD______(3)

In ∆ ABC,

AB+ BC > AC______(4)

adding (1),(2),(3)&(4)

we get,

2(AB+BC+CD+DA) > 2(AC+BD)

thus , AB+BC+CD+DA > AC+BD