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Find the values of `a`for which eht equation `||x-2|+a|=4`can have four distinct real solutions. |
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Answer» `|x-2|+ a= pm 4` `rArr |x-2|= pm 4-a ` For four real roots `4-a lt 0 and -4-a lt 0` `rArr a in (-oo,-4)` |
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