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Find values of x, if |2451|=|2x46x| - Mathematics

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प्रश्न

Find values of x, if ` |(2,4),(5,1)|=|(2x, 4), (6,x)|`

योग

उत्तर

`abs ((2,4),(5,1)) = abs ((2x, 4),(6, x))`

⇒ `2(1) - 5(4) = 2x (x) - 24`

⇒  `2 - 20 = 2x^2 - 24`

⇒ `-18 = 2x^2 - 24`

⇒  `2x^2 - 24 + 18`

= 18

⇒  `2x^2 - 6`

= 0

⇒  `x^2 = 6/2`

= 3

⇒  `x = pm sqrt3`

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अध्याय 4: Determinants - Exercise 4.1 [पृष्ठ १०९]

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एनसीईआरटी Mathematics [English] Class 12
अध्याय 4 Determinants
Exercise 4.1 | Q 7.1 | पृष्ठ १०९

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