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Question

The product (a + b) (a − b) (a2 − ab + b2) (a2 + ab + b2) is equal to

(a) a6 + b6

(b) a6 − b6

(c) a3 − b3

(d) a3 + b3

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Solution

We have to find the product of

Using identity

We can rearrange as

Again using the identity

Here

Hence the product of is

The correct choice is .


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