Question:`sqrt9x+2=5`হলে এর সমাধান সেট কোনটি ? 

A `0/` 
B `{1}` 
C `{3}` 
D `{5}` 

+ Answer
B 

+ Explanation
`sqrt9x=5-2;sqrt9x=3;9x=9;`
সুতরাং x=1অর্থাৎ সমাধান সেট {1}

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Rashada Nipa

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