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प्रश्न
Find x, if `"g"(x)` = 0 where `"g"(x)`= `(18−2x^2)/ 7`
उत्तर
`"g"(x)` = `(18−2x^2)/ 7`
`"g"(x)`= 0 ...(Given)
∴ 0 = `(18−2x^2)/ 7`
∴ 0 = 18 – 2x2
∴ 2x2 = 18
∴ x2 = `18/2`
∴ x2 = 9
∴ x = ± 3
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