Use suitable identities to find the following products :-

`(y^2+3/2)(y^2-3/2)`

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#### Solution

By using the identity (x + y)(x - y) = x^{2} - y^{2},

`(y^2+3/2)(y^2-3/2)= (y^2)^2-(3/2)^2`

`= y^4-9/4`

Concept: Algebraic Identities

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