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Which is the correct number-line representation of ( 9\le 4x+1\le 17 )?( 9\le 4x+1\le 17 ) का संख्या रेखा पर सही निरूपण कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( [2,4] )( [2,4] )
Solving gives ( 8\le 4x\le 16 ), so ( 2\le x\le 4 ). Since both signs include equality, both endpoints are closed.हल करने पर ( 8\le 4x\le 16 ), इसलिए ( 2\le x\le 4 )। दोनों ( \le ) होने से दोनों सिरे बंद होंगे।
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