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प्रश्न
Use suitable identity to find the following product:
`(y^2+3/2)(y^2-3/2)`
उत्तर
By using the identity (x + y)(x − y) = x2 − y2,
`(y^2+3/2)(y^2-3/2)= (y^2)^2-(3/2)^2`
= `y^4-9/4`
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