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The equation `(sqrt(5)+2)^(|x|)+(sqrt(5)-2)^(|x|)=18`. hasA. only one solutionB. two solutionsC. no solutionD. any number of solutions |
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Answer» Correct Answer - B We have, `(sqrt(5)+2)^(|x|)+(sqrt(5)-2)^(|x|)=(sqrt(5)+2)^2)+(sqrt(5)-2)^2)` `implies |x|=2 implies x=+-2` |
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