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What is the correct number-line interval for ( -5<\frac{x-2}{4}\le 0 )?( -5<\frac{x-2}{4}\le 0 ) का संख्या रेखा पर सही अंतराल कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( (-18,2] )( (-18,2] )
Multiplying by ( 4 ) gives ( -20<x-2\le 0 ), so ( -18<x\le 2 ). Multiplication by a positive number does not reverse signs.चार से गुणा करने पर ( -20<x-2\le 0 ), इसलिए ( -18<x\le 2 )। धनात्मक से गुणा करने पर चिन्ह नहीं बदलता।
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