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GO Classes DPP | GATE CS | Discrete Mathematics| Set Theory

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Let $S=\{x \in R: x \geq 0$ and $2|\sqrt{x}-3|+\sqrt{x}(\sqrt{x}-6)+6=0$. Then, $S$ 

  1. is an empty set.
  2. contains exactly one element.
  3. contains exactly two elements.
  4. contains exactly four elements.

2 Answers

0 0 votes

one time we open mod function with  postive sign and  marking it  domain  and another time with negative sign 

if  we are getting value fo t out of domain rejected   and within domain accepted  

so value of X we are getting is  {4,16}

option C is correct.

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