NCERT | Identitiy | Figure It Out | Pg.154 | Q1(ii) — task. Mathematics CBSE, Class 8 New.

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Compute these products using the suggested identity.

\(398 × 402\) using the identity for \((a + b)(a - b)\)

Answer:

\((a - b)(a + b)\) \(=\)

i^{i} - i^{i}

Rewrite the product as

(i - 2) (i + 2)

\(398 × 402\) \(=\)

Did you find an error?

33. NCERT | Identitiy | Figure It Out | Pg.154 | Q1(ii)