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Question

(x āˆ’ y) (x + y) (x2 + y2) (x4 + y4) is equal to

(a) x16 āˆ’ y16

(b) x8 āˆ’ y8

(c) x8 + y8

(d) x16 + y16

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Solution

Given

Using the identity

Hence is equal to

The correct choice is .


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