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The number of integral values of `x` satisfying the equation `|x-|x-4||=4` isA. `5`B. `7`C. `9`D. infinite |
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Answer» Correct Answer - D `(d)` `f(x)=|x-|x-4||` `={{:(2|x-2|,,,xlt4),(4,,,xge4):}` For `|x-|x-4||=4` `2|x-2|=4impliesx=0`,`4` `:.` solution set is `{0}uu[4,oo)`. |
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