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प्रश्न
5m - n = 3m + 4n then find the value of the following expression.
`(3m + 4n)/(3m - 4n)`
उत्तर
5m - n = 3m + 4n
⇒ 5m - 3m = n + 4n
⇒ 2m = 5n
⇒ `m/n = 5/2`
`(3m + 4n)/(3m - 4n)`
= `[(3m)/n + (4n)/n]/[(3m)/n - (4n)/n]`
= `[3 xx 5/2 + 4]/[3 xx 5/2 -4]`
= `[15+8]/[15-8]`
= `23/7`
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