Q. 6 D4.3( 4 Votes )
Use appropriate f
Answer :
1008 × 992 = (1000 + 8)(1000 – 8)
We use (a + b)(a - b) = a2 - b2
⇒ 1008 × 992 = 10002-82
⇒ 1008 × 992 = 1000000-64
⇒ 1008 × 992 = 999936
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