1.

The set of all numbers a such that a^(2) + 2a, 2a + 3 " and " a^(2) + 3a + 8are the sides of a triangle is ………..

Answer»

`(5, INFTY)`
`(- infty, 5)`
`(-5, 5)`
`[5, - infty]`

ANSWER :A


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